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EPA Regulations

US Environmental Protection Agency
Revised UST Regulations 2015

The revisions strengthen the 1988 federal underground storage tank (UST) regulations by increasing emphasis on properly operating and maintaining UST equipment. The revisions will help prevent and detect UST releases, which are a leading source of groundwater contamination. The revisions will also help ensure all USTs in the United States, including those in Indian country, meet the same minimum standards. This is the first major revision to the federal UST regulations since 1988.

Washington

Department of Ecology
     DOE Underground Storage Tank (UST) Regulations chapter 173-360 WAC
Puget Sound Clean Air Agency (PSCAA) - King, Snohomish, Pierce, & Kitsap counties
Southwest Clean Air Agency (SWCAA) - Lewis, Skamania, Clark, Cowlitz, & Wahkiakum counties
Northwest Clean Air Agency (NWCAA) - Whatcom, Island, & Skagit counties
Olympic Region Clean Air Agency (ORCAA) - Thurston, Mason, Pacific, Grays Harbor, Jefferson, & Clallam counties
Yakima Regional Clean Air Authority (YRCAA) - Yakima County
Benton Clean Air Authority - Benton County
Spokane Regional Clean Air Authority (SRCAA) - Spokane County
Washington State Department of Agriculture Weights & Measures

Oregon

Department of Environmental Quality (OR DEQ)
Oregon Measurement Standards Division

Idaho

Idaho State Department of Agriculture Weights & Measures
Idaho Department of Environmental Quality (Idaho DEQ)

California

California Air Resources Board (CARB)
California Division of Measurement Standards

Nevada

Nevada Department of Agriculture Weights & Measures

Arizona

Arizona Department of Weights & Measures

Additional Links

National Conference on Weights & Measures (NCWM)
National Institute of Standards and Technology (NIST)
      NIST Handbook 44 (PDF - Adobe Reader required)
Petroleum Equipment Institute (PEI)
National Work Group on Leak Detection Evaluations (NWGLDE)