Underground Storage Tanks (USTs)
Laws and Rules
State Program Approval
Washington State has a federally-approved state Underground
Storage Tank (UST) program. This means that state law, not
federal law, applies to UST systems in this state.
For information about the federal UST program, and the minimum requirements for state program approval, visit: http://www.ecy.wa.gov/programs/tcp/ust-lust/2012/laws-fed.html.
State Laws and Rules
The following laws and rules apply to UST systems in this state:
For your convenience, Ecology has published the following document that contains both the UST statute and rule:
Ecology has published documents that answer frequently asked questions (FAQ) about the UST regulations:
To read a brief history of the regulation of underground storage tanks, visit http://www.ecy.wa.gov/programs/tcp/ust-lust/2012/laws-history.html
Ecology plans to amend Chapter 173-360 WAC, Underground Storage Tank (UST) Regulations. As part the rulemaking, Ecology plans to:
For more information about the rulemaking and how to get involved, visit: http://www.ecy.wa.gov/programs/tcp/regs/wac173360/1602ov.html.
Ecology Laws and Rules Page
To find information about other agency laws and rules, or the status of other agency rule making, go to www.ecy.wa.gov/laws-rules/index.html
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