Progress: Addressed, Not Adequately
DOT Relevance: 192.749
Section 192.749 (Vault Maintenance) of Subpart M (Maintenance) of 49 CFR 192 states the frequency at which vaults must be inspected, and steps to follow if gas is found in the vault.
For hydrogen pipeline purposes, regulations as to the frequency of vault inspections must be determined. Regulations must also be put in place for the inspection of ventilating equipment and vault covers. Any areas of confined space must be addressed with regard to operator safety and maintenance. Atmospheric testing may also be appropriate.
No information found.
Confirm whether or not this topic will be addressed by ASME B31.12. Standards must be established relating to vault maintenance on hydrogen pressure regulating and pressure limiting equipment. These standards must be incorporated by reference into the federal code.