DENVER AMENDMENT PROPOSAL 2015 INTERNATIONAL CODES

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1 DENVER AMENDMENT PROPOSAL 2015 INTERNATIONAL CODES NOTE: Each proposed Denver amendment to the International Codes must be justified. In order to be considered, the amendment proposal must address climate, clarity and/or cost. 1) Submitter Information Name: JD Lanz Date: 7/9/15 Organization (if DFD applicable): Phone: address: 2) *Signature: * I hereby grant and assign to City and County of Denver all rights in copyright I may have in any authorship contributions I make to City and County of Denver in connection with this proposal. I understand that I will have no rights in any City and County of Denver publications that use such contributions in the form submitted by me or another similar form and certify that such contributions are not protected by the copyright of any other person or entity. Note: electronic signatures are acceptable. 3) Indicate which International Code (I-Code) you propose to amend (please use acronym): IFC If your code proposal requires an amendment to another I-Code, please indicate which other I-Code and section(s) is impacted, and provide the necessary language within the proposal form. See section below for list of names and acronyms for the International Codes. 4) Be sure to format your proposal and include all information as indicated on pages 2-3 of this form. 5) Send your proposal to Community Planning and Development (CPD), attention: Jill Jennings Golich, via at jill.jenningsgolich@denvergov.org. An submittal should include an electronic version saved with a file name as follows: 2015_public_amendment_proposal_Codname_SectionReference, where Codename_SectionReference is replaced using the code and section being proposed (for instance 2015_public_amendmnet_proposal_IBC_Section312 ). The only formatting necessary is BOLDING, STRIKEOUT AND UNDERLINING. Please do not provide additional formatting such as this will be done by CPD. Please use a separate form for each proposal submitted unless as allowed in 3) above. Note: All amendment proposals received will receive an acknowledgment, and will be posted on the Building Code website to allow the public review. Please check here if a separate graphic file is provided. Graphic materials (graphs, maps, drawings, charts, photographs, etc.) must be submitted as separate electronic files in either PDF, JPEG or TIF format (300 DPI minimum resolution; 600 DPI or more preferred) even though they may also be embedded in your submittal. Acronym DBC-AP IBC IECC IEBC IFC IFGC IMC Code Name Denver Building Code Administrative Provisions International Building Code International Energy Conservation Code International Existing Building Code International Fire Code International Fuel Gas Code International Mechanical Code Acronym IPC IRC NEC Code Name International Plumbing Code International Residential Code National Electrical Code

2 AMENDMENT PROPOSAL Please provide all of the following items in your amendment proposal. Your proposal may be entered on the following form, or you may attach a separate file. However, please read the instructions for each part of the amendment proposal. Code Sections/Tables/Figures Proposed for Revision: Note: If the proposal is for a new section, indicate (new) Proposal: Show the proposal using strikeout or underline format. At the beginning of each section, include one of the following instruction lines: Revise as follows Add new text as follows Delete and substitute as follows Delete without substitution Delete and substitute as follows: SECTION 5307 NEW AND EXISTING CARBON DIOXIDE (C02) SYSTEMS USED IN BEVERAGE DISPENSING APPLICATIONS General. New and existing carbon dioxide systems with more than 100 pounds (45.4 kg) of carbon dioxide or any system storing or using any amount of carbon dioxide (CO2) below grade in a basement or crawl space used in beverage dispensing applications shall comply with Sections through Permits. Permits shall be required as set forth in Sections and Equipment. The storage, use, and handling of liquid carbon dioxide shall be in accordance with Chapter 53 and the applicable requirements of NFPA 55, Chapter 13. All equipment utilized in compressed gas systems shall be compatible with the intended gas and use Containers, cylinders and tanks. Gas storage containers, cylinders and tanks shall be designed, fabricated, tested and labeled with manufactures specifications and shall be maintained in accordance with the regulations of DOTn 49 CFR, Parts or the ASME Boiler and Pressure Vessel Code, Section VIII Location. Location of gas storage containers, cylinders and tanks, inside or outside the building, shall be at an approved location Security. Gas storage containers, cylinders and tanks shall be secured in an approved manner to prevent overturning. Containers, cylinders and tanks located outside shall be secured and safeguarded against tampering and protected from physical damage if exposed to vehicle traffic Design and construction. Bulk tank installations over 2,000 pounds will require an engineered foundation and construction permit per the Denver Building Code Piping systems. Piping, tubing, control valves and pressure regulating devices shall be designed and installed in accordance with approved standards and manufacturers recommendations. PVC/ABS and other types of rigid plastic piping are not approved materials. Valves and controls shall be readily accessible at all times. Normal and emergency shut-off valves shall be clearly identified. Pressure relief valves shall be provided. Automatic and system operated control valves

3 shall be provided as needed and designed to fail to a closed condition. System controls shall be designed to prevent materials from entering or leaving process/reaction systems at other than intended time, rate or path Venting. Venting of gases shall be directed to an approved location (not within 10 of any building openings) outside the building. Venting shall comply with the International Mechanical Code. Insulated liquid carbon dioxide systems shall have pressure relief devices vented in accordance with NFPA Protection from damage. Carbon dioxide systems shall be installed so the storage tanks, cylinders, piping and fittings are protected from damage by occupants or equipment during normal facility operations Required protection. Where carbon dioxide storage tanks, cylinders, piping and equipment are located indoors, rooms or areas containing carbon dioxide storage tanks, cylinders, piping and fittings and other areas where a leak of a carbon dioxide system can collect shall be provided with either ventilation in accordance with Section or an emergency alarm system in accordance with Section Ventilation. Mechanical ventilation shall be in accordance with the International Mechanical Code and shall comply with all of the following: 1. Mechanical ventilation in the room or area shall be at a rate of not less than 1 cubic foot per minute per square foot [ m3/(s m2 )]. 2. Exhaust shall be taken from a point within 12 inches (305 mm) of the floor. 3. The ventilation system shall be designed to operate at a negative pressure in relation to the surrounding area. 4. Ventilation shall run continuously or be activated by a sensor or detector to maintain an atmosphere of less than 5,000 ppm. 5. A mechanical permit is required per the Denver Building Code Emergency alarm system. An emergency alarm system shall comply with all of the following: 1. Continuous gas detection shall be provided to monitor areas where carbon dioxide can accumulate. Detection equipment shall be provided at each point of use and in each storage area/room. 2. Detectors shall be: a. permanently mounted. b. installed at a height of no less than 12 inches above the floor. c. directly connected to building electrical or fire alarm systems and protected from accidental disconnection. d. Auto calibrating and self zeroing devices are not permitted. 3. Activation of the emergency alarm system shall initiate amber strobes and audible horns provided in the vicinity of each interior storage container, cylinder or tank and at each point of use. The notification devices shall be rated a minimum of 100cd for a visible effect and 75 dba for an audible effect. 4. Alarm set points shall be set at: a PPM Self re-setting (non-latching) alarm Low level audio alarm for employees Supervisory Condition* b. 10,000 PPM Latching Alarm Strobe activation near storage area Requires a service company to investigate, repair and reset. Supervisory Condition* c. 20,000 PPM Latching Alarm High level audio alarm and strobe activation throughout facility Activation of automatic shut off valves

Evacuate facility and call 911 Alarm Condition* *In buildings with a monitored sprinkler or fire alarm/detection system, the CO2 emergency alarm gas detection shall be connected to the building fire

4 Evacuate facility and call 911 Alarm Condition* *In buildings with a monitored sprinkler or fire alarm/detection system, the CO2 emergency alarm gas detection shall be connected to the building fire alarm control panel. A fire alarm permit is required per the Denver Building Code. 5. Signage will be required adjacent to each horn/strobe within 4 inches as follows. Storage Area/Room: DO NOT ENTER WHEN LIGHT IS FLASHING - CARBON DIOXIDE LEAK DETECTED Dispensing / Point of use: FLASHING LIGHT MEANS CARBON DIOXIDE LEAK DETECTED EVACUATE IMMEDIATELY The sign shall have a minimum 2-inch block lettering with a minimum ½-inch stroke. The sign shall be on a contrasting surface of black on yellow and shall be of durable construction. Signage shall be provided on each storage area entry door stating: NFPA 704 placards for Simple Asphyxiants shall also be provided at the main entrance to storage rooms/areas Transfilling. Filling and transfilling of gases between storage containers, cylinders and tanks and delivery vehicles shall be performed by qualified personnel using equipment and operating procedures in accordance with CGA P-1. Interior storage containers, cylinders and tanks shall be filled via remote fill ports on the exterior of the building. Exterior remote fill ports shall be fitted with return / overfill lines. Delivery personnel shall have access to interior storage areas to inspect valves and piping prior to initiating filling operations Inspection and testing. All detectors, alarms, storage vessels, piping and appurtenances shall be visibly inspected daily and have bump tests performed monthly. Semi-Annual inspection and system tests shall be performed by a qualified service company. A written record of all required inspection, testing and maintenance shall be maintained in a log book on the premises containing 3 most current years of records and be available for review by inspection personnel Training. All employees shall receive annual training in hazard identification, physical properties and emergency procedures. Training records shall be maintained on site and be available to inspectors upon request.

5 Supporting Information: The following items are required to be included. Purpose: The proponent shall clearly state the purpose of the proposed amendment to climate and/or clarify that are specific to the City and County of Denver (e.g., clarify the Code; revise outdated material; substitute new or revised material for physical, environmental and customary characteristics; add new requirements to the Code; delete current requirements, etc to reflect physical, environmental and customary characteristics that are specific to the City and County of Denver.) Reasons: The proponent shall justify changing the current Code provisions, stating why the proposal is necessary to reflect physical, environmental and customary characteristics that are specific to the City and County of Denver. Proposals that add or delete requirements shall be supported by a logical explanation which clearly shows why the current does not reflect physical, environmental and customary characteristics that are specific to the City and County of Denver and explains how such proposals will improve the Code. Substantiation: The proponent shall substantiate the proposed amendment based on technical information and substantiation. Substantiation provided which is reviewed and determined as not germane to the technical issues addressed in the proposed amendment shall be identified as such. The proponent shall be notified if the proposal is considered an incomplete proposal, and the proposal shall be held until the deficiencies are corrected. The burden of providing substantiating material lies with the proponent of the amendment proposal. A minimum of two copies of all substantiating information shall be submitted. Bibliography: The proponent shall submit a bibliography when substantiating material is associated with the amendment proposal. The proponent shall make the substantiating materials available for review. Purpose: Section 5307 is a new section in the 2015 IFC for Carbon Dioxide (CO2) Systems Used In Beverage Dispensing Applications. The proposed amendment provides clarity to the base code requirements. Reasons: The revised version of Section 5307 clarifies specific requirements. This revised Section 5307 was written with input from local gas supply companies.

6 Referenced Standards: List any new referenced standards that are proposed to be referenced in the code and provide a minimum of one electronic copy. Should the amendment proposal be recommended for inclusion in the amendment package, you must provide two hard copies.

7 Impact: Discuss the impact of the proposed amendment and answer the three questions below on the impact of the amendment proposal. Effect of the proposed amendment on the cost of design: Increase Reduce No Effect Effect of the proposed amendment on the cost of construction: Increase Reduce No Effect Is the amendment proposal more or less restrictive than the I-Codes? More Less Same Departmental Impact: To be filled out by CPD/DFD Note: The department shall indicate one of the following regarding the impact of the amendment proposal: Effect of the proposed amendment on the time to review: Increase Reduce No Effect Effect of the proposed amendment on the cost of enforcement/inspection: Increase Reduce No Effect

AMENDMENTS TO THE BUILDING AND FIRE CODE FOR THE CITY AND COUNTY OF DENVER

AMENDMENTS TO THE BUILDING AND FIRE CODE FOR THE CITY AND COUNTY OF DENVER The 2016 Denver Building and Fire Code includes the following codes except as amendment herein. 2015 IBC (Building) 2015 IFC (Fire)