Petroleum / Hazardous Liquids Storage Tanks Overview

Training Announcement:

DATCP will once again be conducting training sessions for AST and UST installers in Madison, Wausau, and Milwaukee in February of 2020. This year's training will cover changes to ATCP 93, AST/UST system repair requirements, form updates, 2020 sump upgrades, and sump testing requirements. The agenda for this training also includes an extended general discussion/Q&A period for discussion about the scheduled training topics or any other questions installers would like addressed.

Certified AST and UST installers may attend any one of these training sessions to earn 6 continuing education credits. Pre-registration is required.

2020 AST/UST Installer Training Registration Form

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The Bureau of Weights and Measures is responsible for the administration and regulation of the Wisconsin Administrative Code ATCP 93 - Flammable and Combustible Liquids. The Bureau’s administrative and regulatory functions include:

  • Reviewing of system design plans for storage or dispensing system installation, modification or upgrade

  • Permitting and registration of aboveground and underground flammable and combustible liquid storage tanks

  • Inspection of flammable and combustible liquid storage tank systems

  • Maintaining the statewide aboveground and underground storage tank database

  • Adoption of technical standards

  • Credentialing individuals and companies working in storage tank-related specialties

  • Administering ATCP 93 Local Program Operator agents

Contact Us

Weights and measures state inspectors, licensing/permit staff, local program operator, and bureau management phone and email information

File a Complaint

Information on how to file a weights and measures, fuel quality, or storage tank complaint

A/B/C Operator Training Requirements

Information on Wisconsin storage tank A/B/C operator training requirements

Alternative Fuels and Fueling Facilities

Information on the requirements for selling alternative fuels and installing/converting alternative fueling equipment and facilities

Certification Info for Storage Tank Service Companies and Technicians

Information on Wisconsin storage tank company and technician credentials, continuing education requirements, and tank specialty firm query

Find a Certified Storage Tank Specialty Firm

Link to a listing of tank specialty firms who are credentialed to perform work on storage tank systems regulated under Wisconsin Administrative Code ATCP 93. A list of and technicians by certification type is also available at mywww.sdhongtaikj.com.

Resources for Owners and Operators

Operational information for owners and operators, including facts sheets, FAQs, and helpful links

Storage Tank Database (searchable)

The new searchable storage tank database is now available. If you have questions regarding information in this database, please call 608-224-4942 and select option 3. Please note: if you need copies of records associated with the information in the database, you must submit a public records request. For more information, please visit our Public Records page.

Storage Tank Forms

Registration, installation, inspection, testing, financial responsibility, operator training, closure, material approval, variance, and important building determination forms

Storage Tank Laws & Regulations

Links to storage tank-related state and federal laws and regulations

Storage Tank Permit & Registration

Information specific to Wisconsin storage tank registration, permit-to-operate, and financial responsibility requirements

Training and Continuing Education Information

Wisconsin Administrative Code ATCP 93 requires AST Installers, UST Installers, and Tank System Inspectors to obtain 12 Continuing Education Credits (CEC) within the 2 year certification period in order to renew their certification