Downstreamthe daily issueevery agencyPipeline and Hazardous Materials Safety Administration

The long-form archive

Everything Pipeline and Hazardous Materials Safety Administration has published while this archive has been running: 4 documents across 3 days, oldest first.

coverage from

What that date means

Coverage begins on 2026-09-01, which is when this archive started holding Federal Register issues — not when the agency started publishing.

Anything earlier is absent from this page, and its absence is not evidence.

1 September 2026 1 document

The Pipeline and Hazardous Materials Safety Administration reopened the public comment period until September 4, 2026, for joint advisory committee proceedings on thirteen pipeline safety proposed rules.

9 September 2026 2 documents

10 September 2026 1 document

The Pipeline and Hazardous Materials Safety Administration published a notice that the Federal Hazardous Materials Transportation Act preempts California's reusability mandate for propane cylinders.

Ask an assistant instead

Everything on this page is also a tool call. Add mcp.downstream.sh as an MCP server in Claude, ChatGPT, or any client that speaks the protocol — no key, no account — then paste this:

Using the Downstream MCP server at mcp.downstream.sh, call whats_new_since with agency "Pipeline and Hazardous Materials Safety Administration" since 2026-09-01, then tell me what this agency has been working on and which of its deadlines are still open.

Reaches whats_new_since. The response carries its own citations and states what it is missing — including which dates it has no record for.