Rulemakingcurrent
PHMSA-2016-0136-0055
PHMSA-2016-0136-0055
SupplementNational Transportation Safety Board - Investigation and Findings: Over-pressurization of Natural Gas Distribution System, Explosions, and Fires, in Merrimack Valley, Massachusetts (Presentation) Supporting & Related Material; Supplement. Filed in Regulations.gov docket PHMSA-2016-0136.#
This material provides agency context. It does not replace binding regulatory text, and its legal effect depends on the underlying authority and facts.