The U.S. Environmental Protection Agency (EPA) formally announced on Monday, October 6, 2014, that it will be amending the All Appropriate Inquiries Rule (40 CFR part 312). Specifically, the EPA is replacing the reference to ASTM International’s E1527-05 standard practice with a reference to the updated ASTM E1527-13 “Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessments Process.” The EPA has announced the changes will be effective beginning October 6, 2015. ASTM International published the updated ASTM E1527-13 standard in November 2013 and it is currently the recognized industry standard to conduct all appropriate inquiries under the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA).
A copy of the Federal Register including this announcement can be found here.