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The EPA is recognizing an updated standard, developed by ASTM International, as compliant with the regulatory requirements provided in the All Appropriate Inquiries (AAI) Rule (40 CFR 312). The standard being recognized is the updated American Society for Testing and Materials (ASTM) E2247-16 Phase I Environmental Site Assessment Standard for Forestland and Rural Properties. The EPA determined the revised standard is compliant with the AAI Rule. The agency has not made any changes to the regulatory requirements, including in the AAI rule. This action merely recognizes the ASTM E2247, "Phase I Environmental Site Assessment Standard for Forestland or Rural Properties" as compliant with the regulation. Parties conducting AAI have the option of using the ASTM E2247 standard when conducting AAI in certain circumstances. This action does not require any party to use the standard.