LXReady | Training Impact Advisor

What changed: PHMSA removed the redundant hazardous-substances and RQ tables in Appendix A to 49 CFR §172.101 and now directs users to EPA's list at 40 CFR §302.4. The rule changes where the list is referenced, not the underlying hazardous-substance classification or RQ values.

The specific edit suggestions below are a human-authored, source-checked reference assessment, not independently generated by AI. They are proposed training wording, not verbatim regulatory text. Verify against the full final rule before approving.

Counts refer to this curated test set, not a comprehensive regulatory scan.

Unrelated rule screening

49 CFR Part 571: Vehicle automatic emergency braking correction. This rule does not concern the hazardous substance references discussed in the training guide. It should not trigger an update for this test case.

View unrelated Federal Register example

What this prototype does and does not prove

Working: Source-grounded page references, before/after recommendations, impact explanations, no-update examples, JSON export, and optional live Federal Register metadata retrieval.

Not implemented: AI-generated edits, autonomous regulatory discovery, automated comparison of historical and current eCFR text, PDF upload in the browser, and ongoing monitoring. The findings are intentionally a transparent benchmark for testing those capabilities next.