Revised On: June 26, 2024 - 2:30 p.m.
The ADEQ Underground Storage Tank (UST) Service Provider Certification Program was established in order to ensure that work performed on UST systems is done in accordance with Arizona Revised Statutes1 and Arizona Administrative Code.2 A person must be ADEQ-certified or supervised by an ADEQ-certified person in order to perform certain categories of work on an UST system.
Which tank services require an ADEQ-certified service provider?
The categories of certification include:
- Installation and retrofit
- Cathodic protection testing
- Interior lining
- Tightness testing
- Decommissioning
- Note: Collection of environmental samples is not considered as part of ADEQ certification for UST service providers.
How can I become an ADEQ-certified UST Service Provider?
When applying for a category of certification, an individual must submit the following:
- A completed ‘UST Service Provider Application’
- Proof of qualification for the certification category being sought (documentation required varies depending on the category of work, please see application for more details)
- Two color portraits of the applicant
UST service providers must also submit a new application form within 30 days following any changes to their application information, including change of employer.3
How do I renew my ADEQ-certified UST Service Provider certification?
Submit a new application form with all the required documentation identified in the application. ADEQ recommends submitting your application at least 30 days prior to expiration of your current certification.
Additional Resources
ADEQ UST Service Provider Program — General Information | View/Download >
ADEQ UST Service Provider Program — Interior Lining Certification | View/Download >
ADEQ UST Service Provider Certification Listing | Learn More >
1 A.R.S. Title 49, Chapter 5 and A.A.C. Title 18, Article 8
2 A.A.C. Title 18, Chapter 12, Article 8
3Pursuant to A.A.C. R18-12-807(C)
