EPA Approves ASTM E1527 21 Standard Practice
Environmental Protection Agency approved the use of the American Society for Testing and Materials E1527 21 Standard Practice for Phase I Environmental Site Assessments. It will become effective February 13, 2023 and the previous standard will be phased out over one year.
United States Us Environmental Protection Agency American Society For Testing Materials Protection Agency Final Rule American Society
Source: natlawreview.com