40 CFR § 261.172 - Compatibility of hazardous secondary materials with containers.

---
identifier: "/us/cfr/t40/s261.172"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 261.172 - Compatibility of hazardous secondary materials with containers."
title_number: 40
title_name: "Protection of Environment"
section_number: "261.172"
section_name: "Compatibility of hazardous secondary materials with containers."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "I"
subchapter_name: "SOLID WASTES"
part_number: "261"
part_name: "IDENTIFICATION AND LISTING OF HAZARDOUS WASTE"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 6905, 6912(a), 6921, 6922, 6924(y) and 6938."
regulatory_source: "45 FR 33119, May 19, 1980, unless otherwise noted."
cfr_part: "261"
---


# 261.172 Compatibility of hazardous secondary materials with containers.

The container must be made of or lined with materials which will not react with, and are otherwise compatible with, the hazardous secondary material to be stored, so that the ability of the container to contain the material is not impaired.