It was only a matter of time before EPA announced its final rule concerning the new ASTM Phase I ESA Process and it’s designation as being compliant with CERCLA AAI. 

The final rule was published today in the Federal Register (see link below) and it has an effective date of February 13, 2023.

https://www.federalregister.gov/documents/2022/12/15/2022-27044/standards-and-practices-for-all-appropriate-inquiries

Posted December 19, 2022