National Institute of Standards and Technology
National Institute of Standards and Technology's Categorical Exclusions (opens in new tab)Categorical Exclusion
III. Facility Modernization
Exclusion Text
III-3.* Minor improvements to existing steam plants and cooling water systems (including, but not limited to, modifications of existing cooling towers and ponds) that support building, commercial, laboratory, or industrial spaces, provided that the improvements would not: a) Create new sources of water or involve new receiving waters; b) Have the potential to significantly alter water withdrawal rates; c) Exceed the permitted temperature of discharged water; or d) Increase introductions of, or involve new introductions of, hazardous substances, pollutants, contaminants, or Comprehensive Environmental Response, Compensation, and Liability Act-excluded (CERCLA) petroleum and natural gas products.
Disclaimer
This CE Explorer tool is not an authoritative source and creates no rights or obligations. When using the CE Explorer Tool, Federal agencies and stakeholders should review the relevant agency's NEPA procedures for information about how to apply the CE, including any limitations or potential extraordinary circumstances, and to ensure that a CE is current and applicable to a given proposed action. For ease of use, a link to each agency's NEPA procedures and CEs is provided along with the text of the CE. To adopt and use another agency's categorical exclusion, an agency must follow the steps described in section 109 of NEPA, 42 U.S.C. 4336c.
