Michigan Administrative Code
Department - Licensing and Regulatory Affairs
Bureau of Fire Services
Storage and Handling of Gaseous and Liquefied Hydrogen Systems
Part 3 - STORAGE AND HANDLING OF LIQUEFIED HYDROGEN NFPA 50B
Chapter 7 - Liquefied hydrogen dispensing systems
Section R. 29.7125 - Emergency shutoff devices

Rule 125. Sections 7-6 and 7-6.1 of the storage and handling of gaseous and Liquefied H2 code are added as follows:

7-6 Emergency shutoff devices.

7-6.1 Liquefied H2 dispensing systems shall be provided with 1 or more clearly identified emergency shutoff devices or electrical disconnects at the dispensing area. Such devices or disconnects shall be installed in approved locations but not less than 10 feet (3.1 meters) and not more than 100 feet (30.5 meters) away from the dispensing area and which is along the means of egress. Emergency shutoff devices or electrical disconnects shall disconnect power and fuel supply to all dispensing devices, to all remote pumps serving the dispensing devices, and to all associated power. When more than 1 emergency shutoff device or electrical disconnect is provided, all devices shall be interconnected. Resetting an emergency shutoff shall require manual intervention and the manner of resetting shall be approved by the department.