CLIENT ALERT: EPA Approves Use of Revised E1527-21 Standard for Phase I Environmental Site Assessments
The new ASTM standard (ASTM E1527-21) for Phase I Environmental Site Assessments (ESAs) was published in November 2021. On December 15, 2022, USEPA published a direct final rule approving the new standard for conducting the all appropriate inquiry (AAI) component for potential liability protections under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). With