Which regulation outlines reportable quantities for hazardous substances?

The regulation that outlines reportable quantities for hazardous substances is found in 40 CFR 302.4. This section of the Code of Federal Regulations specifically deals with establishing reportable quantities for certain hazardous substances under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). It details the amounts of specific hazardous substances that, if released into the environment, require notification to the appropriate authorities.

Understanding this regulation is key for professionals involved in environmental protection and response, as it helps ensure compliance with federal requirements for the reporting and management of hazardous materials.

The other options pertain to different aspects of environmental regulations. For example, 40 CFR 117.3 relates to the notification of oil spills, 40 CFR 280.70 involves the technical requirements for underground storage tanks, and 40 CFR 265.30 addresses the general requirements for hazardous waste storage. Each of these sections plays a unique role in environmental protection but does not specifically outline the reportable quantities for hazardous substances.