UST Certification Examination Program


Petroleum storage tanks are regulated by federal and state laws. Many states require that tank workers be licensed or certified before being allowed to install, retrofit or decommission UST and/or AST systems or components. Code Council UST/AST examinations can be used to complement state licensing programs. In some states, individuals are required to pass state-specific examinations.

The program is used as a mandatory requirement in whole or in part by some states (listed below with state specific exams). It is available as a voluntary credential in several other states where there is not yet a mandatory UST or AST licensing requirement.

Anyone seeking a state or local license should first contact the appropriate licensing agency regarding specific local requirements.

Available UST Certification Exams


Once you've decided which exam you need to take, head on over to the Exam Catalog to search for and purchase your exam.

Exam ID Exam Title
AU Class A UST System Operator- AU
BU Class B UST System Operator
UA Colorado UST Operator Class A- UA
UB Colorado UST Operator Class B- UB
HA New Hampshire Class A UST System Operator
HB New Hampshire Class A UST System Operator
NJ New Jersey Class A/B UST System Operator
U0 State of Alaska UST Laws and Rules-U0
VI Vapor Recovery System Installation and Repair- VI
VT Vapor Recovery System Testing and Repair- VT
U5 AST Installation/Retrofitting- U5
UI California UST Inspector- UI
UT California UST Service Technician- UT
UC California UST System Operator (Designated)- UC
NA Michigan Class A UST System Operator
NB Michigan Class B UST System Operator
U8 Oregon Heating Oil Tank Supervisor- U8
PR PSCAA Vapor Recovery System Installation and Repair- PR
PT PSCAA Vapor Recovery System Testing and Repair- PT
U4 UST Cathodic Protection- U4
U2 UST Decommissioning- U2
U1 UST Installation/Retrofitting- U1
U3 UST Tank Tightness Testing- U3
VR Vapor Recovery System Repair- VR
U7 Washington State Site Assessment- U7
W5 Wyoming State Specific AST Operator- W5
W6 Wyoming State Specific UST Operator- W6

Ready to purchase your exam?

Once you've decided which exam you need to take, head on over to the Exam Catalog to search for and purchase your exam.