Page 1 of 190 Public Input No. 22-NFPA 55-2013 [ Global Input ] Throughout the document, delete ANSI from ANSI/ASME B31.3. Current Text: (multiple locations) ANSI/ASME B31.3 (found in Subsections: 2.3.2 ASME Publications; 7.3.1.3 Piping Systems; 8.14.1.4.2 Piping Systems; 8.14.3 Joints; 9.4.1.1 System Design; 9.4.1.3* Low-Temperature Service; 9.4.1.6.1; 12.1.3; 12.3.2.9.5.1; 14.4.2.1.1; 14.4.2.2.3.1 Welding (A); 14.4.2.2.3.2 Brazing (A); 14.4.5 Testing; A.10.2.2; I.1.2.4 ASME Publications) Proposed Text : ANSI/ASME B31.3 ASME standards no longer use the ANSI/ASME designation. Some standards within NFPA 55 have been changed to the ASME designation (e.g., ASME B31.12). This change is requested for consistency. Submitter Full Name: Phillip Mariscal Organization: Compressed Gas Association Submittal Date: Wed May 22 14:27:19 EDT 2013 Resolution: FR-1-NFPA 55-2013 Statement: ASME standards no longer use the ANSI/ASME designation. Some standards within NFPA 55 have been changed to the ASME designation (e.g., ASME B31.12). This change is requested for consistency.

Page 2 of 190 I, Phillip Mariscal, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this By checking this box I affirm that I am Phillip Mariscal, and I agree to be legally bound by the above and the terms and conditions contained therein. I understand and intend that, by

Page 3 of 190 Public Input No. 24-NFPA 55-2013 [ New Section after 1.3 ] 1.3.1 Conflicts 1.3.1.1? When a requirement differs between this Code and a referenced document, the requirement of this Code shall apply. [1:1.3.3.1] 1.3.1.2? When a conflict between a general requirement and a specific requirement occurs, the specific requirement shall apply. [1:1.3.3.2] There are over 70 referenced documents and publications utilized in NFPA 55 as found in Chapter 2 and the potential exists for code users to encounter conflicts. Language is found within NFPA 1 Fire Code and NFPA 5000 Building Construction and Safety Code regarding the approach to be used to resolve conflicts should conflicts be encountered. Similar requirements are found in administrative sections of the International Fire Code (2012 Edition) in Section 102.7.1 for Conflicts with reference documents, and in Section 102.10 regarding conflicts between general versus specific requirements. Establishing a section in NFPA 55 to resolve conflicts will avoid problems in establishing the hierarchy with the use of reference codes and standards. Submitter Full Name: Phillip Mariscal Organization: Compressed Gas Association Submittal Date: Wed May 22 14:56:02 EDT 2013 Resolution: FR-2-NFPA 55-2013 Statement: There are over 70 referenced documents and publications utilized in NFPA 55 as found in Chapter 2 and the potential exists for code users to encounter conflicts. Language is found within NFPA 1 Fire Code and NFPA 5000 Building Construction and Safety Code regarding the approach to be used to resolve conflicts should conflicts be encountered. Similar requirements are found in administrative sections of the International Fire Code (2012 Edition) in Section 102.7.1 for Conflicts with reference documents, and in Section 102.10 regarding conflicts between general versus specific requirements. Establishing a section in NFPA 55 to resolve conflicts will avoid problems in establishing the hierarchy with the use of reference codes and standards. The Technical Committee has dropped the extract tag from NFPA 1 to make it clear that the referenced code is NFPA 55 not NFPA 1.

Page 4 of 190 I, Phillip Mariscal, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this By checking this box I affirm that I am Phillip Mariscal, and I agree to be legally bound by the above and the terms and conditions contained therein. I understand and intend that, by

Page 5 of 190 Public Input No. 26-NFPA 55-2013 [ Section No. 1.4.1 ] 1.4.1 * Unless otherwise specified, the provisions of this code shall not apply to facilities, equipment, structures, or installations that existed or were approved for construction or installation prior to the effective date of the code. Where specified, the provisions of this code shall be retroactive. The annex note was added to give more examples of meeting new and old code requirements and to remove potential loophole for using older code requirements when upgrading systems. (Note: only the asterisk represents new text and only the asterisk should have underlining) Related Public Inputs for This Document Related Input Public Input No. 25-NFPA 55-2013 [New Section after A.1.2] Relationship Annex note Submitter Full Name: Phillip Mariscal Organization: Compressed Gas Association Submittal Date: Wed May 22 15:03:04 EDT 2013 Resolution: FR-9-NFPA 55-2013 Statement: The annex note was added to give more examples of meeting new and old code requirements and to remove potential loophole for using older code requirements when upgrading systems. (Note: only the asterisk represents new text and only the asterisk should have underlining) I, Phillip Mariscal, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this

Page 6 of 190 By checking this box I affirm that I am Phillip Mariscal, and I agree to be legally bound by the above and the terms and conditions contained therein. I understand and intend that, by

Page 7 of 190 Public Input No. 105-NFPA 55-2013 [ Section No. 2.3.4 ] 2.3.4 ASTM Publications. ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959. ASTM E 84, Standard Test Method for Surface Burning Characteristics of Building Materials, 2010 2013a ASTM E 119, Standard Test Methods for Fire Tests of Building Construction and Materials, 2009 2012a. ASTM E 136, Standard Test Method for Behavior of Materials in a Vertical Tube Furnace at 750 C, 2011 2012. ASTM E 681, Standard Test Method for Concentration Limits of Flammability of Chemicals (Vapors and Gases), 2009. ASTM E 1529, Standard Test Methods for Determining Effects of Large Hydrocarbon Pool Fires on Structural Members and Assemblies, 2010. ASTM E 2652, Standard Test Method for Behavior of Materials in a Tube Furnace with a Cone-Shaped Airflow Stabilizer, at 750 Degrees C, 2009a 2012. standards date updates Submitter Full Name: Marcelo Hirschler Organization: GBH International Submittal Date: Sat Jul 06 14:43:20 EDT 2013 Resolution: FR-3-NFPA 55-2013 Statement: standards date updates I, Marcelo Hirschler, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this

Page 8 of 190 By checking this box I affirm that I am Marcelo Hirschler, and I agree to be legally bound by the above and the terms and conditions contained therein. I understand and intend that, by

Page 9 of 190 Public Input No. 27-NFPA 55-2013 [ Section No. 3.3.3 ] 3.3.3 Acetylene Operations. Operations that include acetylene generation, storage, purification, compression, cylinder filling, cylinder mobile acetylene trailer systems (MATS) filling and discharge, cylinder storage, and calcium carbide storage. In the definition of acetylene operations, include acetylene trailer charging and discharging operations. These operations are performed in acetylene charging plants using trailers as source gas or fill into trailers. Submitter Full Name: Phillip Mariscal Organization: Compressed Gas Association Submittal Date: Wed May 22 15:06:44 EDT 2013 Resolution: FR-4-NFPA 55-2013 Statement: In the definition of acetylene operations, include acetylene trailer charging and discharging operations. These operations are performed in acetylene charging plants using trailers as source gas or fill into trailers. I, Phillip Mariscal, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this By checking this box I affirm that I am Phillip Mariscal, and I agree to be legally bound by the above and the terms and conditions contained therein. I understand and intend that, by

Page 10 of 190 Public Input No. 55-NFPA 55-2013 [ Section No. 3.3.15 ] 3.3.15 * Bulk Oxygen System. An assembly of equipment, such as oxygen storage containers, pressure regulators, pressure relief devices, vaporizers, manifolds, and interconnecting piping, that has a storage capacity of more than 20,000 scf (566 Nm 3 ) of oxygen and that terminates at the source valve. The NFPA 2 technical committee reorganized its list of system definitions to follow the alphabetical order used in NFPA 55. In so doing, the technical committee noticed that the bulk oxygen system definition in section 3.3.15 of NFPA 55 was separated from the system definitions in section 3.3.93 of NFPA 55 and should be relocated. Another public input has been created to move the definition from section 3.3.93. Submitter Full Name: Rob Early Organization: Praxair Affilliation: NFPA 2 Technical Committee Submittal Date: Thu Jun 06 13:52:23 EDT 2013 Resolution: FR-5-NFPA 55-2013 Statement: The NFPA 2 technical committee reorganized its list of system definitions to follow the alphabetical order used in NFPA 55. In so doing, the technical committee noticed that the bulk oxygen system definition in section 3.3.15 of NFPA 55 was separated from the system definitions in section 3.3.93 of NFPA 55 and should be relocated. Another public input has been created to move the definition to section 3.3.93. Move text to 3.3.93. Move annex text with section.

Page 11 of 190 I, Rob Early, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this By checking this box I affirm that I am Rob Early, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature

Page 12 of 190 Public Input No. 3-NFPA 55-2013 [ New Section after 3.3.20 ] 3.3.xx* Cleaning Media. Materials used to clean piping systems. Additional Proposed Changes File Name Description Approved 55_PI3_TIA_Substantiation.docx Substantiation text from TIA Note: This Public Input originates from Tentative Interim Amendment 55-13-2 (TIA 1073) issued by the Standards Council on October 30, 2012. See uploaded file. Submitter Full Name: TC on IMG-AAA Organization: TC on Industrial and Medical Gases Submittal Date: Mon Jan 28 13:54:50 EST 2013 Resolution: FR-60-NFPA 55-2013 Statement: Note: This Public Input originates from Tentative Interim Amendment 55-13-2 (TIA 1073) issued by the Standards Council on October 30, 2012. See uploaded file. I, TC on IMG-AAA, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this By checking this box I affirm that I am TC on IMG-AAA, and I agree to be legally bound by the above and the terms and conditions contained therein. I understand and intend that, by

Page 13 of 190 Public Input No. 87-NFPA 55-2013 [ New Section after 3.3.40 ] 3.3.XX Exposures Group 1. The distances specified are those required to reduce the radiant heat flux level to 500 Btu/hr ft2 (1577 W/m2) at the property line or the distance to a point in the unignited hydrogen jet where the hydrogen content is reduced to a 4 percent mole fraction (volume fraction) of hydrogen, whichever is greater. In all cases the distance required to achieve a 4 percent mole fraction was the greater distance and used to establish the requirements. 3.3.XX Exposures Group 2. The distances specified are those required to reduce the radiant heat flux level to 1500 Btu/hr ft2 (4732W/m2) for persons exposed a maximum of 3 minutes. 3.3.XX Exposures Group 3. The distances specified are those required to reduce the radiant heat flux level to 6340 Btu/hr ft2 (20,000 W/m2) or the visible flame length for combustible materials, or a radiant heat flux level of 8000 Btu/hr ft2 (25,237 W/m2) or the visible flame length for noncombustible equipment. In both cases the visible flame length was used to establish the requirements. The exposures in chapters 10 &11 simply mention group 1, 2, 3 exposures and don't indicate what they mean or what the concern is. The document either needs to add them as definitions in chapter 3 or add text as was done in the oxygen chapter. Without this the reader has no way of knowing what importance or concern is for those exposure levels. Submitter Full Name: Phillip Mariscal Organization: Compressed Gas Association Submittal Date: Wed Jun 26 10:57:57 EDT 2013 Resolution: The Technical Committee does not believe that chapter specific definitions belong in Chapter 3. This material is adequately covered in the individual chapters and the existing annex material.

Page 14 of 190 I, Phillip Mariscal, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this By checking this box I affirm that I am Phillip Mariscal, and I agree to be legally bound by the above and the terms and conditions contained therein. I understand and intend that, by

Page 15 of 190 Public Input No. 85-NFPA 55-2013 [ Section No. 3.3.49.7 ] 3.3.49.7 Irritant Gas. A chemical that is not corrosive, but that causes a reversible inflammatory effect on living tissue by chemical action at the site of contact. A chemical is a skin irritant if, when tested on the intact skin of albino rabbits by the methods of 16 CFR 1500.41, for an exposure of 4 or more hours or by other appropriate techniques, it results in an empirical score of 5 or more. A chemical is classified as an eye irritant if so determined under the procedure listed in 16 CFR 1500.42, or other appropriate techniques. The word, irritant, is not used in the document and does not support any verbiage or requirements. It should be deleted. Submitter Full Name: Phillip Mariscal Organization: Compressed Gas Association Submittal Date: Wed Jun 19 10:21:22 EDT 2013 Resolution: FR-7-NFPA 55-2013 Statement: The word, irritant, is not used in the document and does not support any verbiage or requirements. It should be deleted. I, Phillip Mariscal, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this By checking this box I affirm that I am Phillip Mariscal, and I agree to be legally bound by the above and the terms and conditions contained therein. I understand and intend that, by

Page 16 of 190 Public Input No. 4-NFPA 55-2013 [ New Section after 3.3.49.11 ] 3.3.xx Purging. A method used to free the internal volume of a piping system of unwanted contents that results in the existing contents being removed or replaced. Additional Proposed Changes File Name Description Approved 55_PI3_TIA_Substantiation.docx Substantiation text from TIA Note: This Public Input originates from Tentative Interim Amendment 55-13-2 (TIA 1073) issued by the Standards Council on October 30, 2012. See uploaded file. Submitter Full Name: TC on IMG-AAA Organization: TC on Industrial and Medical Gases Submittal Date: Mon Jan 28 13:57:47 EST 2013 Resolution: FR-61-NFPA 55-2013 Statement: Note: This Public Input originates from Tentative Interim Amendment 55-13-2 (TIA 1073) issued by the Standards Council on October 30, 2012. See uploaded file. I, TC on IMG-AAA, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this By checking this box I affirm that I am TC on IMG-AAA, and I agree to be legally bound by the above and the terms and conditions contained therein. I understand and intend that, by

Page 17 of 190 Public Input No. 39-NFPA 55-2013 [ New Section after 3.3.64.2 ] 3. 3. 64.3 Incompatible hazardous m aterials. Materials that, when in contact with each other, have the potential to react in a manner that generates heat, fumes, gases, or by-products that are hazardous to life or property. [ 400: 2013 3.3.61.5 ] It is unclear in table 8.7.2 what constitutes an incompatible hazardous material. Referring to section 7.1.11.2 provides that definition. Submitter Full Name: Phillip Mariscal Organization: Compressed Gas Association Submittal Date: Thu May 23 10:06:56 EDT 2013 Resolution: FR-8-NFPA 55-2013 Statement: It is unclear in table 8.7.2 what constitutes an incompatible hazardous material. A definition was needed and is extracted from NFPA 400. I, Phillip Mariscal, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this By checking this box I affirm that I am Phillip Mariscal, and I agree to be legally bound by the above and the terms and conditions contained therein. I understand and intend that, by

Page 18 of 190 Public Input No. 109-NFPA 55-2013 [ Section No. 3.3.93.2 ] 3.3.93.2 * Bulk Hydrogen Compressed Gas System. An a Gaseous Hydrogen (GH2) System with a storage capacity of more than 5,000 scf (141.6 Nm3) of compressed hydrogen gas 3.3.93.X * Gaseous Hydrogen (GH2) System. An assembly of equipment that consists of, but is not limited to, storage containers, pressure regulators, pressure relief devices, compressors, manifolds, and piping, with a storage capacity of more than 5000 scf (141.6 Nm 3 ) of compressed hydrogen gas and that terminates at the source valve. A.3.3.93.X Gaseous Hydrogen System. The gaseous hydrogen system terminates at the point where hydrogen at service pressure first enters the distribution piping. Harmonize with definitions updated and developed by NFPA 2 Technical Committee Submitter Full Name: Rob Early Organization: Praxair Affilliation: NFPA 2 Technical Committee Submittal Date: Mon Jul 08 16:36:19 EDT 2013 Resolution: FR-30-NFPA 55-2013 Statement: Harmonize with definitions updated and developed by NFPA 2 Technical Committee. Move Bulk Hydrogen Compressed Gas System and Hydrogen Generation System as sub-definitions to Gaseous Hydrogen (GH2) System. I, Rob Early, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this

Page 19 of 190 By checking this box I affirm that I am Rob Early, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature

Page 20 of 190 Public Input No. 54-NFPA 55-2013 [ New Section after 3.3.93.4 ] 3.3.93.5* Bulk Oxygen System An assembly of equipment, such as oxygen storage containers, pressure regulators, pressure relief devices, vaporizers, manifolds, and interconnecting piping, that has a storage capacity of more than 20,000 scf (566 Nm 3 ) of oxygen and that terminates at the source valve. The NFPA 2 technical committee reorganized its list of system definitions to follow the alphabetical order used in NFPA 55. In so doing, the technical committee noticed that the bulk oxygen system definition in section 3.3.15 of NFPA 55 was separated from the system definitions in section 3.3.93 of NFPA 55 and should be relocated. Another public input has been created to delete the definition from section 3.3.15. Submitter Full Name: Rob Early Organization: Praxair Affilliation: NFPA 2 Technical Committee Submittal Date: Thu Jun 06 13:47:13 EDT 2013 Resolution: See FR #5. Single FR deletes and moves this text. I, Rob Early, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this By checking this box I affirm that I am Rob Early, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature

Page 21 of 190 Public Input No. 110-NFPA 55-2013 [ Section No. 3.3.93.4 ] 3.3.93.4 * Bulk Liquefied Hydrogen System. a Liquefied Hydrogen (LH2) System with a storage capacity of more than 39.7 gal (150 L) of liquefied hydrogen 3.3.93.Y * Liquefied Hydrogen (LH2) System. An assembly of equipment that consists of, but is not limited to, storage containers, pressure regulators, pressure relief devices, vaporizers, liquid pumps, compressors, manifolds, and piping, with a storage capacity of more than 39.7 gal (150 L) of liquefied hydrogen that terminates at the source valve. A.3.3.93.Y Liquefied Hydrogen System. The system originates at the storage container fill connection and terminates at the point where hydrogen at service pressure first enters the supply line. Harmonizes with definitions updated and developed by NFPA 2 Technical Committee Submitter Full Name: Rob Early Organization: Praxair Affilliation: NFPA 2 Technical Committee Submittal Date: Mon Jul 08 16:40:00 EDT 2013 Resolution: FR-71-NFPA 55-2013 Statement: Harmonizes with definitions updated and developed by NFPA 2 Technical Committee. Move Bulk Liquefied Hydrogen System as a sub-definition to Liquefied Hydrogen (LH2) System.

Page 22 of 190 I, Rob Early, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this By checking this box I affirm that I am Rob Early, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature

Page 23 of 190 Public Input No. 112-NFPA 55-2013 [ Section No. 4.2.1.2 ] 4.2.1.2 The plan shall be available for inspection by the AHJ upon reasonable notice and shall include the following information: (1) The type of emergency equipment available and its location (2) A brief description of any testing or maintenance programs for the available emergency equipment (3) An indication that hazard identification labeling is provided for each storage area (4) The location of posted emergency procedures (5) A material safety data sheet (MSDS) or equivalent for each compressed gas or cryogenic fluid stored or used on the site (6) A list of personnel who are designated and trained to be liaison personnel for the fire department and who are responsible for the following: (a) (b) (c) (d) Aiding the emergency responders in pre-emergency planning Identifying the location of the compressed gases and cryogenic fluids stored or used Accessing MSDSs Knowing the site emergency procedures (7) A list of the types and quantities of compressed gases and cryogenic fluids and the locations of the respective control areas, storage areas, gas rooms and detached buildings found within the facility Additional Proposed Changes File Name 4.2.1.2.docx Description Approved Cover Sheet In addition to the types and quantities of hazardous materials found in a facility, emergency responders need to know the location of those materials within the facility. Particularly in large facilities, there may be several different locations. Listing them will help ensure prompt identification of the hazard areas.

Page 24 of 190 Submitter Full Name: Glenn Mahnken Organization: FM Global Submittal Date: Fri Jul 12 07:35:41 EDT 2013 Resolution: FR-10-NFPA 55-2013 Statement: This section is extracted into NFPA 2, section 4.6.2. The NFPA 2 technical committee requested the removal of the words "upon reasonable notice" for the following reasons:the Emergency Plan should be readily available at all times. If a facility operator cannot immediately (quickly) obtain a copy of their emergency plan for an AHJ to inspect, then it is likely that it would not be readily available in an emergency for facility first responders or public emergency responders. In addition to the types and quantities of hazardous material found within a facility, emergency responders need to know the locations or those materials within the facility. Particularly in large facilities, there may be several different locations. Listing them will help ensure prompt identification of the hazard areas. I, Glenn Mahnken, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this By checking this box I affirm that I am Glenn Mahnken, and I agree to be legally bound by the above and the terms and conditions contained therein. I understand and intend that, by

Page 25 of 190 Public Input No. 52-NFPA 55-2013 [ Section No. 4.2.1.2 ] 4.2.1.2 The plan shall be available for inspection by the AHJ upon reasonable notice and shall include the following information: (1) The type of emergency equipment available and its location (2) A brief description of any testing or maintenance programs for the available emergency equipment (3) An indication that hazard identification labeling is provided for each storage area (4) The location of posted emergency procedures (5) A material safety data sheet (MSDS) or equivalent for each compressed gas or cryogenic fluid stored or used on the site (6) A list of personnel who are designated and trained to be liaison personnel for the fire department and who are responsible for the following: (a) (b) (c) (d) Aiding the emergency responders in pre-emergency planning Identifying the location of the compressed gases and cryogenic fluids stored or used Accessing MSDSs Knowing the site emergency procedures (7) A list of the types and quantities of compressed gases and cryogenic fluids found within the facility This section is extracted into NFPA 2, section 4.6.2. The NFPA 2 technical committee requested the removal of the words "upon reasonable notice" for the following reasons:the Emergency Plan should be readily available at all times. If a facility operator cannot immediately (quickly) obtain a copy of their emergency plan for an AHJ to inspect, then it is likely that it would not be readily available in an emergency for facility first responders or public emergency responders. This is from change 8-NFPA 2-2012 Submitter Full Name: Rob Early Organization: Praxair Affilliation: NFPA 2 Technical Committee Submittal Date: Wed Jun 05 15:38:57 EDT 2013

Page 26 of 190 Resolution: FR-10-NFPA 55-2013 Statement: This section is extracted into NFPA 2, section 4.6.2. The NFPA 2 technical committee requested the removal of the words "upon reasonable notice" for the following reasons:the Emergency Plan should be readily available at all times. If a facility operator cannot immediately (quickly) obtain a copy of their emergency plan for an AHJ to inspect, then it is likely that it would not be readily available in an emergency for facility first responders or public emergency responders. In addition to the types and quantities of hazardous material found within a facility, emergency responders need to know the locations or those materials within the facility. Particularly in large facilities, there may be several different locations. Listing them will help ensure prompt identification of the hazard areas. I, Rob Early, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this By checking this box I affirm that I am Rob Early, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature

Page 27 of 190 Public Input No. 113-NFPA 55-2013 [ New Section after 6.2.3 ] 6.2.3.1 Unless the entire building or floor is designated as the single control area, the limits of the control area shall be delineated by visible markings, barrier walls, fencing or other means. Additional Proposed Changes File Name 6.2.3.1.docx Description Approved Cover Sheet When a single control area is present, especially in a large building, the limits of the control area should be marked off to help ensure that the gas containers are properly located in areas that are safeguarded per the requirements of NFPA 55. Otherwise, the containers might be inadvertently placed in sections of the building where some required safeguards, such as ventilation or sprinkler protection, are not in place. Submitter Full Name: Glenn Mahnken Organization: FM Global Submittal Date: Fri Jul 12 07:37:39 EDT 2013 Resolution: Control areas are delineated by fire barriers, not fencing or visible markings. Therefore, this proposal would be difficult to implement and enforce. I, Glenn Mahnken, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this By checking this box I affirm that I am Glenn Mahnken, and I agree to be legally bound by the above and the terms and conditions contained therein. I understand and intend that, by

Page 28 of 190 Public Input No. 88-NFPA 55-2013 [ Section No. 6.10.2.1 ] 6.10.2.1 When sprinkler protection is required, the area in which compressed gases or cryogenic fluids are stored or used shall be protected with a sprinkler system designed to be not less than that required by NFPA 13, Standard for the Installation of Sprinkler Systems, for Ordinary Hazard Group 2 occupancies. The currenct wording does not match the wording in NFPA 13. Added word occupancies to match terminology used in NFPA 13. Submitter Full Name: Phillip Mariscal Organization: Compressed Gas Association Submittal Date: Wed Jun 26 11:06:08 EDT 2013 Resolution: FR-12-NFPA 55-2013 Statement: The currenct wording does not match the wording in NFPA 13. Added word occupancies to match terminology used in NFPA 13. I, Phillip Mariscal, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this By checking this box I affirm that I am Phillip Mariscal, and I agree to be legally bound by the above and the terms and conditions contained therein. I understand and intend that, by

Page 29 of 190 Public Input No. 89-NFPA 55-2013 [ Section No. 6.10.2.2 ] 6.10.2.2 When sprinkler protection is required, the area in which the flammable or pyrophoric compressed gases or cryogenic fluids are stored or used shall be protected with a sprinkler system designed to be not less than that required by NFPA 13, Standard for the Installation of Sprinkler Systems, for Extra Hazard Group 1 occupancies. The current wording does not match NFPA 13. Added the word, "occupancies," to match NFPA 13. Submitter Full Name: Phillip Mariscal Organization: Compressed Gas Association Submittal Date: Wed Jun 26 11:13:07 EDT 2013 Resolution: FR-13-NFPA 55-2013 Statement: The current wording does not match NFPA 13. Added the word, "occupancies," to match NFPA 13. I, Phillip Mariscal, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this By checking this box I affirm that I am Phillip Mariscal, and I agree to be legally bound by the above and the terms and conditions contained therein. I understand and intend that, by

Page 30 of 190 Public Input No. 86-NFPA 55-2013 [ Section No. 6.16.4.2 ] 6.16.4.2 For gases that are heavier than air (e.g. carbon dioxide, argon, nitrous oxide), exhaust shall be taken from a point within 12 in. (305 mm) of the floor. The use of supplemental inlets shall be allowed to be installed at points above the 12 in. (305 mm) threshold level. Gives examples of gases that are heavier than air and are under the scope of NFPA 55. Submitter Full Name: Phillip Mariscal Organization: Compressed Gas Association Submittal Date: Wed Jun 19 13:10:57 EDT 2013 Resolution: FR-14-NFPA 55-2013 Statement: Gives examples of gases that are heavier than air and are under the scope of NFPA 55 in new annex material. I, Phillip Mariscal, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this By checking this box I affirm that I am Phillip Mariscal, and I agree to be legally bound by the above and the terms and conditions contained therein. I understand and intend that, by

Page 31 of 190 Public Input No. 91-NFPA 55-2013 [ Section No. 6.16.4.2 ] 6.16.4.2 For gases that are heavier than air, exhaust (e.g., carbon dioxide, argon, nitrous oxide) exhaust shall be taken from a point within 12 in. (305 mm) of the floor. The use of supplemental inlets shall be allowed to be installed at points above the 12 in. (305 mm) threshold level. The current text does not provide enough specific information. Adding examples advises the reader of those gases that are heavier than air and that are covered under NFPA 55's scope. Submitter Full Name: Phillip Mariscal Organization: Compressed Gas Association Submittal Date: Wed Jun 26 11:27:01 EDT 2013 Resolution: See FR-14 I, Phillip Mariscal, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this By checking this box I affirm that I am Phillip Mariscal, and I agree to be legally bound by the above and the terms and conditions contained therein. I understand and intend that, by

Page 32 of 190 Public Input No. 30-NFPA 55-2013 [ Section No. 6.16.4.3 ] 6.16.4.3 For gases that are lighter than air, (e.g. hydrogen, helium), exhaust shall be taken from a point within 12 in. (305 mm) of the ceiling. The use of supplemental inlets shall be allowed to be installed at points below the 12 in. (305 mm) threshold level. Indicating that hydrogen and helium are lighter than air gases reinforce that those gases need high vents. Submitter Full Name: Phillip Mariscal Organization: Compressed Gas Association Submittal Date: Wed May 22 15:46:13 EDT 2013 Resolution: FR-15-NFPA 55-2013 Statement: Indicating that hydrogen and helium are lighter than air gases reinforce that those gases need high vents. I, Phillip Mariscal, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this By checking this box I affirm that I am Phillip Mariscal, and I agree to be legally bound by the above and the terms and conditions contained therein. I understand and intend that, by

Page 33 of 190 Public Input No. 108-NFPA 55-2013 [ Section No. 6.16.5 ] 6.16.5 Recirculation of Exhaust. Exhaust ventilation shall not be recirculated within the room or building if the cylinders, containers, or tanks stored are capable of releasing hazardous gases. The part of the sentence which is suggested for deletion allows air to be recirculated if the containers are unable to leak gas. There are no such container that have no possibility to leak. Submitter Full Name: Jim Muir Organization: Building Safety Division, Clark County, Washington Affilliation: NFPA Building Code Development Committee (BCDC) Submittal Date: Mon Jul 08 14:47:15 EDT 2013 Resolution: Not all cylinders contain gases that are hazardous. One example is compressed air. The Technical Committee feels that the existing language is adequate. I, Jim Muir, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this By checking this box I affirm that I am Jim Muir, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature

Page 34 of 190 Public Input No. 32-NFPA 55-2013 [ Section No. 7.1 [Excluding any Sub-Sections] ] The storage, use, and handling of compressed gases in cylinders, containers, and tanks shall be in accordance with the provisions of Chapters 1 through 7. 7.1.1 The provisions of chapter 7 shall apply to the compressed gas storage system, piping, and other components to the source valve when the primary supply of the gas as stored is from a compressed gaseous source that is used in the compressed and gaseous form. 7.1.2 The provisions of chapter 7 shall not apply to piping and other gaseous system components downstream of the liquid vaporizer when the primary supply of compressed gas as stored is in a bulk liquid form. (renumber subsequent) The wording in chapter 7 does not make it clear that gas piping on a bulk liquid supply system is covered by chapter 8. Definitions of bulk supply systems in 3.3.93.3, 3.3.93.4, and 3.3.93.5, along with their annex notes, define systems in more detail. Submitter Full Name: Phillip Mariscal Organization: Compressed Gas Association Submittal Date: Wed May 22 16:02:50 EDT 2013 Resolution: FR-16-NFPA 55-2013 Statement: The wording in chapter 7 does not make it clear that gas piping on a bulk liquid supply system is covered by chapter 8. Definitions of bulk supply systems in 3.3.93.3, 3.3.93.4, and 3.3.93.5, along with their annex notes, define systems in more detail. I, Phillip Mariscal, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this

Page 35 of 190 By checking this box I affirm that I am Phillip Mariscal, and I agree to be legally bound by the above and the terms and conditions contained therein. I understand and intend that, by

Page 36 of 190 Public Input No. 33-NFPA 55-2013 [ Section No. 7.1.3 ] 7.1.3 * Insulated Liquid Nitrous Oxide Systems. (Reserved) Insulated liquid nitrous oxide systems shall be in accordance with Chapter 16. CGA will provide text for a new Chapter 16, Nitrous Oxide. This reference sends the reader to the new chapter. Submitter Full Name: Phillip Mariscal Organization: Compressed Gas Association Submittal Date: Wed May 22 16:07:26 EDT 2013 Resolution: TC felt was not needed based on the response to PI #81. I, Phillip Mariscal, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this By checking this box I affirm that I am Phillip Mariscal, and I agree to be legally bound by the above and the terms and conditions contained therein. I understand and intend that, by

Page 37 of 190 Public Input No. 34-NFPA 55-2013 [ New Section after 7.1.6.5.6 ] 7.1.6.5.7 Shutoffs Between Pressure Relief Devices and Containers. 7.1.6.5.7.1 General. Shutoff valves installed between pressure relief devices and containers shall be in accordance with 7.1.6.5.7. 7.1.6.5.7.2 Location. Shutoff valves shall not be installed between pressure relief devices and containers unless the valves or their use meet the requirements of 7.1.6.5.7.3 or 7.1.6.5.7.4. 7.1.6.5.7.3* Security. Shutoff valves shall be locked in the open position, and their use shall be limited to service-related work performed by the supplier under the requirements of the ASME Boiler and Pressure Vessel Code. 7.1.6.5.7.4 Multiple Pressure Relief Devices. Shutoff valves controlling multiple pressure relief devices on a container shall be installed so that either the type of valve installed or the arrangement provides the full required flow through the minimum number of required relief devices at all times. A.7.1.6.5.7.3 When multiple valves or pressure relief devices are connected to a vent stack or common header, the potential exists for one valve to discharge into the header or stack while personnel are performing maintenance on another valve or pressure relief device. One solution is to install valves on the inlet and outlet of pressure relief devices for maintenance. Closing a full area stop valve on the outlet of a pressure relief device that is being replaced will prevent the backflow of gas from another device that is connected to the same stack or header. Such full area stop valves shall be locked open and shall be provided with manual vent valves for maintaining pressure during maintenance operations in accordance with the ASME Boiler and Pressure Vessel Code. If the full area stop valve is closed, an operator shall be present at all times in order to maintain the vessel pressure within acceptable limits and shall again lock or seal the full area stop valve in the open position before leaving the station (ASME Boiler and Pressure Vessel Code Appendix M-5). Adds more detail about the ASME BPV requirements and provides specific requirements to use manual stop valves. Material is taken from chapter 8 and its updates. Text was used in an update to CGA G-5.5. Submitter Full Name: Phillip Mariscal Organization: Compressed Gas Association Submittal Date: Wed May 22 16:13:34 EDT 2013

Page 38 of 190 Resolution: FR-18-NFPA 55-2013 Statement: Adds more detail about the ASME BPV requirements and provides specific requirements to use manual stop valves. Material is taken from chapter 8 and its updates. Text was used in an update to CGA G-5.5. I, Phillip Mariscal, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this By checking this box I affirm that I am Phillip Mariscal, and I agree to be legally bound by the above and the terms and conditions contained therein. I understand and intend that, by

Page 39 of 190 Public Input No. 115-NFPA 55-2013 [ New Section after 7.1.18.10 ] 7.1.20 Cleaning and purging of end use equipment shall be conducted according to documented procedures in accordance with the requirements of 7.1.19 for piping systems. Additional Proposed Changes File Name 7.1.20.docx Description Approved Cover Sheet TIA 55-13-2 (new section 7.1.19) requires documented procedures for cleaning and purging of piping systems covered under NFPA 55. However, cleaning and purging of end use equipment also presents serious exposures to personnel injury and property damage. These exposures are currently not addressed by NFPA 55. Cleaning and purging requirements for end use equipment should be included in NFPA 55. The procedural safeguards for cleaning and purging of end use equipment are effectively the same as the TIA requires for piping systems. Submitter Full Name: Glenn Mahnken Organization: FM Global Submittal Date: Fri Jul 12 07:41:01 EDT 2013 Resolution: The cleaning and purging of end equipment is outside of the scope of NFPA 55 I, Glenn Mahnken, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this By checking this box I affirm that I am Glenn Mahnken, and I agree to be legally bound by the above and the terms and conditions contained therein. I understand and intend that, by

Page 40 of 190 Public Input No. 6-NFPA 55-2013 [ New Section after 7.1.18.10 ] 7.1.19 Cleaning and Purging of Gas Piping Systems. 7.1.19.1 General. 7.1.19.1.1 Piping systems shall be cleaned and purged in accordance with the requirements of 7.1.19 when one or more of the following conditions exist: (a) When the system is installed and prior to being placed into service. (b) When there is a change in service. (c)* When there are alterations or repair of the system involving the replacement of parts or addition to the piping system and prior to returning the system to service. (d)* Where specified by the design standards or written procedures. 7.1.19.1.2 Cleaning and purging of the internal surfaces of piping systems shall be conducted by qualified individuals trained in cleaning and purging operations and procedures, including the recognition of potential hazards associated with cleaning and purging. 7.1.19.1.3* A written cleaning or purging procedure shall be provided to establish the requirements for the cleaning and purging operations to be conducted. 7.1.19.1.3.1* An independent or third-party review of the written procedure shall be conducted after the procedure has been written and shall: (1) evaluate hazards, errors, and malfunctions related to each step in the procedure (2) review the measures prescribed in the procedure for applicability (3) make recommendations for additional hazard mitigation measures if deemed to be necessary. 7.1.19.1.3.2 The completed written procedure shall be: (1) maintained on site by the facility owner/operator (2) provided to operating personnel engaged in cleaning or purging operations (3) made available to the AHJ upon request. 7.1.19.1.3.3 Where generic cleaning or purging procedures have been established, a job-specific operating procedure shall not be required. 7.1.19.1.3.4 Generic procedures shall be reviewed when originally published or when the procedure or operation is changed. 7.1.19.1.4 Written procedures to manage a change in process materials, technology, equipment, procedures, and facilities shall be established by the facility owner/operator. 7.1.19.1.4.1 The management-of-change procedures shall ensure that the following topics are addressed prior to any change in the configuration or design of the piping system: (1) The technical basis for the proposed change. (2) The safety and health implications. (3) Whether the change is permanent or temporary. (4) Whether modifications to the cleaning and purging procedures are required as a result of the changes identified.