Petroleum / Hazardous Liquids Storage Tanks Service Companies and Technicians

Any corporation, partnership, sole proprietor, independent contractor, or person that provides or offers to provide installation, removal, testing, lining, cleaning, assessments, cathodic testing or cathodic protection system design or installation for a tank system regulated under Wisconsin Administrative Code ATCP 93 must have a certification issued by the Wisconsin Department of Agriculture, Trade and Consumer Protection. Specific specialty requirements, credential application, and renewal requirements can be viewed under the Technician Credential Requirements section below.

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Tank Specialty Firm Registration Requirements

Companies that provide or offer to provide SPS 305 installation, removal, testing, lining, cleaning, or site assessment for a tank system regulated under Wis. Admin. Code ATCP 93 must hold a credential issued by DATCP and employ a technician certified to conduct that work.

Technician Credential Requirements

Aboveground Tank System Installer

In order to install an aboveground tank system that is regulated under Wis. Admin. Code ATCP 93, you must work for a registered Tank Specialty Firm and comply with one of the following:

  • Hold a certification issued by DATCP.

  • Hold a registration as a professional engineer and are competent in the engineering methods and requirements in Wisconsin for designing and installing storage tank systems for flammable, combustible or hazardous liquids.

  • Work under the direct supervision of a person who holds the required certification or registration and who is responsible for the installation.

The training course to become a certified Aboveground Tank System Installer is held at Lakeshore Technical College. For more information, please visit their website or contact Ruth Semph at 920-693-1167 or ruth.semph@gotoltc.edu. The training course is not required, but is recommended.

To initially obtain Aboveground Tank System Installer certification, you must first pass the required exam. See the Fact Sheet below for more information.


Cathodic Protection Tester

In order to conduct cathodic protection testing for a tank system regulated under Wis. Admin. Code ATCP 93 you must have a certification issued by DATCP.

You can apply online to obtain Cathodic Protection Tester certification. See the Fact Sheet below for more information.


Corrosion Expert

In order to design or install a cathodic protection system for a tank system regulated under Wis. Admin. Code ATCP 93 you must have a certification issued by DATCP.

You can apply online to obtain Corrosion Expert certification. See the Fact Sheet below for more information.


Tank System Inspector

In order to inspect a tank system that is regulated under Wis. Admin. Code ATCP 93 for the purpose of administering and enforcing ATCP 93, you must hold a tank system inspector certification issued by DATCP, and be an authorized agent of the department.

To initially obtain Tank System Inspector certification, you must first pass the required exam. See the Fact Sheet below for more information.


Tank System Remover/Cleaner

In order to remove or clean a tank regulated under Wis. Admin. Code ATCP 93, with the exception of field constructed aboveground tanks and heating fuel tanks located aboveground or in basements of 1- or 2-family dwellings, you must meet one of the following requirements:

  • Hold a Tank System Remover-Cleaner certification issued by DATCP.

  • Be under the direct supervision of a person who holds Tank System Remover-Cleaner certification issued by DATCP.

The training course to become a certified Tank System Remover/Cleaner is held at Lakeshore Technical College. For more information, please visit their website or contact Ruth Semph at 920-693-1167 or ruth.semph@gotoltc.edu. The training course is not required, but is recommended.

To initially obtain Tank System Remover/Cleaner certification, you must first pass the required exam. See the Fact Sheet below for more information.


Tank System Site Assessor

In order to conduct a tank system site assessment required under Wis. Admin. Code ATCP 93, you must have a certification issued by DATCP.

To initially obtain Tank System Site Assessor certification, you must first pass the required exam. See the Fact Sheet below for more information.


Tank System Tightness Tester

In order to conduct tank system tightness testing specified in Wis. Admin. Code ATCP 93, you must have a certification issued by DATCP.

You can apply online to obtain Tank System Tightness Tester certification. See the Fact Sheet below for more information.


Underground Tank System Installer

In order to install an underground tank system that is regulated under Wis. Admin. Code ATCP 93, you must comply with one of the following:

  • Hold a certification issued by DATCP.

  • Hold a registration as a professional engineer and are competent in the engineering methods and requirements in Wisconsin for designing and installing storage tank systems for flammable, combustible or hazardous liquids.

  • Work under the direct supervision of a person who holds the required certification or registration and who is responsible for the installation.

The training course to become a certified Aboveground Tank System Installer is held at Lakeshore Technical College. For more information, please visit their website or contact Ruth Semph at 920-693-1167 or ruth.semph@gotoltc.edu. The training course is not required, but is recommended.

To initially obtain Underground Tank System Installer certification, you must first pass the required exam. See the Fact Sheet below for more information.


Underground Tank System Liner

In order to line or reline an underground tank system that has held or will hold flammable or combustible liquids which are regulated under Wis. Admin. Code ATCP 93, you must meet one of the following requirements:

  • Hold an Underground Tank System Liner certification issued by DATCP.

  • Be under the direct supervision of a person who holds an Underground Tank System Liner certification issued by DATCP.

To initially obtain Underground Tank System Liner certification, you must first pass the required exam. See the Fact Sheet below for more information.

Examination Information

The certification for AST Installer, UST Installer, Site Assessor, Remover/Cleaner, and Tank System Inspector require passing an exam.

The exams are an open book exam. While exam questions are based upon a broad range of competencies under the respective codes and standards, the majority of the questions come from the primary code and standards.

Training and Continuing Education Information