Rule 117. Sections 6-2 to 6-2.3 of the storage and handling of gaseous and Liquefied H2 code are added as follows:
6-2.1 Signs prohibiting smoking or open flames within 25 feet (7.6 meters) shall be provided where H2 is produced, stored, or used.
6-2.2 A sign with the following legends printed in red capital letters on a white background shall be conspicuously posted as follows: "NON-ODORIZED FLAMMABLE GAS - CRYOGENIC LIQUID or COLD GAS - NO SMOKING - NO OPEN FLAMES" All lettering on signage shall be 3 inches (7.62 centimeters) or more.
Exception: This does not apply to motor vehicle dispensing per sections 7.2.13 and 4-4. 8.1.
6-2.3 Identification signs. Visible hazard identification signs shall be provided in accordance with NFPA 704, "Standard System for the Identification of the Hazards of Materials for Emergency Response", adopted by reference in section 8.1.1, at entrances to buildings or areas in which liquefied H2 is stored, handled or used.
Mich. Admin. Code R. 29.7117