August 13, 2019

List of Lists Update Available

Updated in June 2019, EPA’s “List of Lists” allows users to quickly determine if a chemical is subject to EPCRA, CERCLA, CAA, or RCRA. Sorted both by chemical name and Chemical Abstracts Service (CAS) number, the document includes chemicals subject to various reporting requirements and indicates if an unused chemical could carry a RCRA P- or U-code if disposed. Also included are a list of radionuclides reportable under CERCLA, definitions and an explanation of the various listed chemical categories.

Because the List of Lists is maintained by EPA, there are two very notable lists of materials that are not included. First, the Department of Transportation’s (DOT’s) hazardous materials list in 49 CFR 172.101 is not included. Second, the Occupational Safety and Health Administration’s (OSHA’s) list of chemicals in 29 CFR 1910.1200 is not included.

EPA does note the List of Lists “should be used only as a reference tool, not as a definitive source of compliance information,” and it does not include a full description of the EPCRA, CERCLA, CAA, or RCRA reporting requirements.


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This document addresses issues of a general nature related to the federal RCRA regulations. Persons evaluating specific circumstances dealing with the RCRA regulations should review state and local laws and regulations, which may be more stringent than federal requirements. In addition, the assistance of a qualified professional should be enlisted to address any site-specific circumstances.