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Permit Requirements

Information about Heating Oil Tank Permit Requirements can be found in Chapter 5 of the Department of Environmental Quality Permit Handbook. Specific sections for HOT permits are listed below.

Licenses to Work on Heating Oil Tanks


Service providers (contractors) who assess, decommission or provide heating oil cleanup services must obtain a Heating Oil Tank Service Provider License.  Service providers must also have a licensed Heating Oil Tank Supervisor on-site during specified operations.


This license is issued under the authority of ORS 466.862 and OAR 340-163.

License Duration

  • The Heating Oil Tank Service Provider License is valid for one year.
  • The Heating Oil Tank Supervisor License is valid for two years.


  • The service provider license application fee is $800.
  • The supervisor license application fee is $200.

Application Process

  1. The applicant contacts DEQ headquarters at 503 229-6652 (toll-free in Oregon at 1-800-742-7878) and requests a Heating Oil Tank Service Provider License.
  2. Applicants for the Heating Oil Tank Supervisor License must pass a written test before submitting an application. The "Oregon Heating Oil Tank Supervisor" examination is given by the International Code Council (ICC). The International Code Council's "2008 ICC UST/AST Examination Bulletin" contains information about the examination, including scheduling instructions, computer-based testing companies, test locations and sample questions. The fee for the exam is $75, which must be paid by cashier’s check, money order, or government check at the exam center or by credit card at the time you make your reservations or up to three days before the date of the exam. To request a copy of this bulletin, call DEQ at 1-800-742-7878 or 503-229-6652, call ICC at 1-888-422-7233 ext. 33823, or visit the International Code Council website.
  3. The applicant completes the application and submits it to DEQ Headquarters with the appropriate fee. Applicants for a Heating Oil Tank Supervisor License must submit their application and a copy of the passing test result to DEQ Headquarters within 30 days of taking the exam.

Average Processing Time

30 days after submitting a license application

Typical License Requirements

Heating oil tank service providers must:

  • Maintain a current address on file with DEQ
  • Perform tank services in a manner which conforms with all regulations
  • Maintain insurance for professional liability
  • Have a licensed supervisor at the site during specified operations
  • Submit applications for license renewals 30 days prior to license expiration.


Petroleum-Contaminated Soil Treatment

If you are treating petroleum contaminated soil from an UST release on your property (on-site) or beyond your property's boundary (off-site), you must obtain a Solid Waste Letter of Authorization permit from DEQ. The SWLA permit application requires a Soil Treatment Plan. Off-site treatment also requires a Land Use Compatibility Statement.