Mich. Admin. Code R. 29.7121
Rule 121. Sections 7-2 to 7-2.15 of the storage and handling of gaseous and Liquefied H2 code are added as follows:
7-2 General system requirements.
7-2.1 All fuel dispensing facilities shall meet the provisions of this chapter.
7-2.2 Compression, processing, generation, storage, and dispensing equipment shall be protected to prevent damage from vehicles and minimize the possibilities of physical damage and vandalism and meet the requirements of section 2-1.5 and section 3-4.4.
7-2.2.1 Access to liquefied H2 storage, compression, and processing equipment by members of the public shall be restricted by a suitable secure area.
7-2.3 Control devices shall be installed so that internal or external icing does not cause vehicle or fueling station malfunction.
7-2.4 Vehicles shall not be considered a source of ignition with respect to the provisions of this chapter.
Exception: Vehicles containing fuel-fired equipment, such as recreational vehicles and catering trucks, shall be considered a source of ignition unless this equipment is shut off completely before entering an area in which ignition sources are not permitted.
7-2.5 The fueling connection shall prevent the escape of H2 where the connector is not properly engaged or becomes separated.
7-2.6 Fueling nozzles for H2 service shall be in accordance with section 2-14.1.
7-2.7 Compression and processing equipment shall be designed for use with H2 and for maximum pressures and temperatures to which it can be subjected under normal operating conditions.
7-2.8 Compression and processing equipment shall have pressure relief devices that limit each stage pressure to the maximum allowable working pressure for the compression cylinder and piping associated with that stage of compression and meets the requirements of chapter 2.
7-2.9 H2 compression equipment shall be equipped with appropriate automatic shutdown controls.
7-2.10 Control circuits that shut down, shall remain down until manually activated or reset by qualified personnel.
7-2.11 A hazard analysis shall be conducted on every H2 fueling system installation by a qualified engineer(s) with proven expertise in H2 fueling systems and installations.
7-2.11.1 The hazard analysis shall include the following: fire protection measures, fire protection and suppression systems, detection systems, and ventilation.
7-2.11.2 At a minimum, the hazard analysis shall include consideration of potential failures in hoses, nozzles, dispensing equipment, as well as failures for maintenance and service.
7-2.11.3 Method used for hazard analysis shall be 1 or combination of several of the following recognized procedures: hazard and operability studies (HAZOPs), failure mode effects and criticality analysis (FMECA), preliminary hazards analysis (PHA), fault tree analysis (FTA) and event tree analysis (ETA). Other analysis methods, when used, shall ensure same level of system safety as provided by any of the recognized procedures or acceptable to the department based on the best interest of public health, safety, and welfare, and the environment.
7-2.11.4 Standard designs that have been analyzed by recognized procedure need not be studied each and every time such installation occurs. Site-specific elements that are unique to the installation shall be reviewed in concert with the analysis performed on the standard system to ensure that the standard design has not been altered in a way that would negatively affect the hazard analysis.
7-2.11.5 These hazard analyses shall be available for review at final inspection, prior to the installation being placed into service, shall be maintained on site, and be available to the department upon request.
7-2.12 Dispensing systems shall be equipped with overfill protection.
7-2.13 Warning signs shall be conspicuously posted in the dispensing area and shall incorporate the following or equivalent wording: "Stop Motor, No Smoking, Non-Odorized Flammable Gas, Cryogenic Liquid or Cold Gas. Remain in attendance outside of the vehicle and in view of the nozzle. No filling of portable containers in or on a motor vehicle."
7-2.14 Each outdoor H2-dispensing device shall be located not less than 10 feet (3.1 meters) from property lines, openings to buildings, and buildings of combustible wall construction. A dispensing device shall not be less than 20 feet (6.1 meters) from any activity that involves a fixed source of ignition. In addition,a dispenser shall not be placed beneath a power line.
7-2.15 Each container filling location that is open to the public shall have an attendant or supervisor on duty who meets the requirements of section 1-8 of the rules.
Mich. Admin. Code R. 29.7121