# 2026-15809: Bureaucrats Scrap Their Duplicate Poison List for Efficiency

2026-15809, Hazardous Materials: Remove Redundant List of U.S. EPA CERCLA Hazardous Substances, is a Federal Register rule from Transportation Department, Pipeline and Hazardous Materials Safety Administration published 2026-08-04, effective 2026-12-02; PRIA reads it as touching household money (as of 2026-08-11).

- Canonical: https://policyrisk.com/federal-register/2026-15809
- As of: 2026-08-11
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2026-15809
- Title: Hazardous Materials: Remove Redundant List of U.S. EPA CERCLA Hazardous Substances
- Type: Rule
- Agencies: Transportation Department; Pipeline and Hazardous Materials Safety Administration
- Citation: 91 FR 49305
- Published: 2026-08-04
- Effective: 2026-12-02
- Comments close: not stated
- Significant: no
- Touches household money: yes
- Regulation identifier numbers: 2137-AG07
- Last updated: 2026-08-11

## In one line

Bureaucrats Scrap Their Duplicate Poison List for Efficiency

## Summary

To improve efficiency and eliminate redundancy, this final rule streamlines the Hazardous Materials Regulations by modifying how hazardous substances are listed. Instead of maintaining a duplicative list, the regulations will now rely on the authoritative, comprehensive list already maintained by the U.S. Environmental Protection Agency.

## Effects PRIA read

- Switch to EPA Hazardous Substances List: benefit, low. If you offer for transportation or transport materials that may be hazardous, starting December 2, 2026 (120 days after publication) you must use the U.S. EPA's list at 40 CFR 302.4 to determine which substances and reportable quantities (RQs) apply. The rule replaces the duplicative PHMSA list in…
- Definitions Now Reference EPA and RQ Table: benefit, low. PHMSA revised the definitions in 49 CFR 171.8 so that a "hazardous substance" and the "reportable quantity (RQ)" are defined by the EPA list in 40 CFR 302.4. For mixtures, the rule keeps the RQ concentration-by-weight table tying RQ pounds to concentrations (for example: RQ 5,000 lb = 10% (100,000…
- Empty Packaging Marking Rule Clarified: benefit, low. PHMSA revised 49 CFR 173.29(h) to state a package that contains residue of a hazardous substance (Class 9) may remain marked, labeled, and placarded as when it contained a larger quantity even if the residue no longer meets the hazardous substance definition. This lets you keep existing markings on…
- PHMSA Certifies No Significant Small-Business Cost: benefit, low. PHMSA certified under the Regulatory Flexibility Act that this final rule will reduce burdens and will not have a significant economic impact on a substantial number of small entities. PHMSA also states the rule will save government resources by eliminating periodic rulemakings to keep lists in syn…

## Related documents

- [2026-13805](https://policyrisk.com/federal-register/2026-13805): Pipeline Safety: Repair Criteria for Hazardous Liquid and Gas Transmission Pipelines, 2026-07-08
- [2026-10969](https://policyrisk.com/federal-register/2026-10969): Pipeline Safety: Breakout Tank Inspection Rule, 2026-06-02
- [2026-10782](https://policyrisk.com/federal-register/2026-10782): Pipeline Safety: Class Location Change Requirements; Correction, 2026-05-29
- [2026-08144](https://policyrisk.com/federal-register/2026-08144): Administrative Rulemaking, Guidance, and Enforcement Procedures, 2026-04-27
- [2026-08058](https://policyrisk.com/federal-register/2026-08058): Pipeline Safety: Safety of Gas Transmission Pipelines: MAOP Reconfirmation, Expansion of Assessment Requirements, and Other Related Amendme…, 2026-04-24
- [2026-06323](https://policyrisk.com/federal-register/2026-06323): Pipeline Safety: Class Location Change Requirements; Response to Petition for Reconsideration, 2026-04-01

## Sources
- [2026-15809 on federalregister.gov](https://www.federalregister.gov/documents/2026/08/04/2026-15809/hazardous-materials-remove-redundant-list-of-us-epa-cercla-hazardous-substances)
- [2026-15809 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2026-08-04/pdf/2026-15809.pdf)

## Related
- [Previous: 2026-15808, Hazardous Materials: Reducing Undue Paperwork Burdens to Domestic Carriers](https://policyrisk.com/federal-register/2026-15808)
- [Next: 2026-15810, Hazardous Materials: Reducing Burdens by Allowing Continued Use of Department o…](https://policyrisk.com/federal-register/2026-15810)
- [All Federal Register documents](https://policyrisk.com/federal-register)

Source: PRIA, https://policyrisk.com/federal-register/2026-15809 (as of 2026-08-11).