Wash. Admin. Code § 173-360A-0920
Owners and operators must ensure that UST system services are performed by or under the direct supervision of a service provider certified in accordance with the requirements of this section. Table 0920-1 identifies the UST system services requiring the use of a service provider and the certification that a service provider must have to perform those services. There are six types of certification, which are specified in WAC 173-360A-0930. Some UST system services may be performed by more than one type of service provider.
Table 0920-1: Type of Certification Required to Perform UST System Services
| UST System Service | Service Requirements | Type of Certification |
| Services not involving corrosion protection | ||
| Installing UST systems or components | WAC 173-360A-0300 | Installation/repair |
| Performing internal inspections of tanks | WAC 173-360A-0320(1) and (2)(a)(ii)(A), WAC 173-360A-0330(1) and (2)(a)(i)(B), or WAC 173-360A-0440 | Installation/repair |
| Tightness testing of containment sumps used for interstitial monitoring | WAC 173-360A-0450 | Tightness testing or installation/repair |
| Tightness testing of spill prevention equipment | WAC 173-360A-0460 | Tightness testing or installation/repair |
| Inspecting overfill prevention equipment | WAC 173-360A-0470 | Tightness testing or installation/repair |
| Testing of electronic or mechanical release detection equipment | WAC 173-360A-0480 | Tightness testing or installation/repair |
| Repairing UST system components, except cathodic protection systems | WAC 173-360A-0490 | Installation/repair |
| Tightness testing of secondary containment areas of tanks or piping used for interstitial monitoring | WAC 173-360A-0490(4)(c) | Tightness testing or installation/repair |
| Tightness testing of tanks | WAC 173-360A-0635 | Tightness testing |
| Tightness testing of piping | WAC 173-360A-0650 | Tightness testing |
| Site evaluations required to use vapor or groundwater monitoring as a release detection method | WAC 173-360A-0660(2) or WAC 173-360A-0665(2) | Site assessment |
| Site assessments, including site checks | WAC 173-360A-0730 | Site assessment |
| Decommissioning tanks or piping undergoing permanent closure or change-in-service | WAC 173-360A-0810(2) or WAC 173-360A-0820(2) | Decommissioning |
| Services involving corrosion protection | ||
| Assessments of corrosion potential | WAC 173-360A-0310(3)(c) | Corrosion expert |
| Designing cathodic protection systems | WAC 173-360A-0310(3)(b) and WAC 173-360A-0300 | Corrosion expert |
| Installing cathodic protection systems designed by corrosion expert | WAC 173-360A-0300 | Installation/repair, corrosion expert, or cathodic protection tester (1) |
| Testing cathodic protection systems | WAC 173-360A-0430(2) | Corrosion expert or cathodic protection tester |
| Evaluating cathodic protection systems that are inadequately protecting tanks or piping based on results of cathodic protection tests or rectifier inspections | WAC 173-360A-0430(2) or WAC 173-360A-0430(3) | Corrosion expert |
| Specifying or designing repairs of cathodic protection systems, including rectifier adjustments | WAC 173-360A-0310(3)(b) and WAC 173-360A-0490 | Corrosion expert |
| Repairing cathodic protection systems, including making rectifier adjustments, specified or designed by corrosion expert | WAC 173-360A-0490 | Installation/repair, corrosion expert, or cathodic protection tester (1) |
Footnotes:
(1) To perform the specified UST system services, a cathodic protection tester must be certified by the International Code Council.
Wash. Admin. Code § 173-360A-0920