According to the environmental protection agency what chemicals must be reported to the appropriate authorities if release above the threshold recording quality listed in the superfund amendments and reauthorization act

The chemicals that must be reported under the superfund amendments and re-authorization act are ones that broadly fall under the category of being flammable, corrosive, explosive, radioactive, asphyxiating, oxidizing, bio-hazardous, toxic, and pathogenic.

Explanation:

The Superfund law developed in the United States of America is known as the Comprehensive Environmental Response, Compensation, and Liability Act (better known by the abbreviation "CIRCLA). The program is funded by the federal natural agency known as the Environmental Protection Agency (EPA). The CERCLA aims to identify and regulate the release of dangerous substances into the environment on the basis of a predefined quantitative threshold. Those responsible for these releases are then required to cleanup the site or in case this can't happen, the superfund is used to finance the costs of the cleanup. Potential sites are identified under the CIRCLA which have been exposed to releases or have the future potential to ensure readiness.

The CIRCLA has issued a comprehensive documents identifying the list of chemicals along with their quantitative threshold which is known as the List of Lists. The list was issued under the Emergency Planning and Community Right-to-Know Act which also known as the Superfund Amendments and Re-authorization Act.  Since the number of substances reported in the list number more than five thousand, you may refer to the list available on the EPA's website.