Underground Storage Tank Forms, Applications, and Guidance Documents | Louisiana Department of Environmental Quality

Welcome to the Underground Storage Tank (UST) Application and Forms Page. Here you will find everything you need to successfully complete environmental applications and meet regulatory requirements. The pages within this section include registration applications, official guidance documents, common FAQs, and required forms to help you navigate the UST process with confidence. In addition, this resource hub provides notifications with important information about modifying UST status. Whether you are registering new tanks, submitting changes to current UST systems, seeking clarification on compliance rules, or submitting a UST notice, these materials are designed to make the process clear, efficient, and accurate.

Applications

UST Registrations and Certified Worker Applications

Underground Storage Tank Registration Form (UST-REG)

UST Certified Worker Initial Application

UST Certified Worker FY 2026 Test Schedule Application Attachment

UST Continuing Education Approval Application

Guidance Documents*

Our resource list provides official information designed to help regulated entities complete required forms and notifications with confidence. The guidance documents explain requirements step‑by‑step, offer tips, and clarify common questions.

Why Use These Guidance Documents?

Clear Instructions – Break down complex environmental regulations into easy‑to‑follow steps.
Application Support – Provide examples and explanations to help you complete forms correctly.
Time Saver – Reduce mistakes and avoid delays in the approval process.
Trusted Source – All documents are approved by the state environmental agency.

Resources

More Resources

Notifications*

UST Notice of Installation Upgrade Renovation Form UST-ENF-04

UST owners and/or certified workers are required to notfiy LDEQ for approval prior to starting UST installation, renovation, or repair using this form.

UST System Installation, Renovation, and Repair Notification Form

UST Notice of Intent to Perform Closure or Change-In-Service UST-SURV-01

UST owners and/or certified workers are required to submit this notification form 30 days prior to permanent closure or change-in-service of a UST for approval.

UST Notice of Intent to Perform Closure or Change-In-Service

UST Closure Assessment Form UST-SUR-02

UST owners or certified workers must complete and submit to LDEQ for approval within sixty (60) days after UST system closure or change-in-service

UST Closure Assessment Form

Compliance Forms*

Release Detection Forms

These forms are used when conducting varies interstitial monitoring or liquid/vapor monitoring for tank and/or piping release detection.

Piping Interstitial Monitoring Records Form for Monthly Visual Sump Inspections Piping Interstitial Monitoring Records Form for Recording Interstitial Monitoring Sensor Results Tank Interstitial Monitoring Records Form for Recording Interstitial Monitoring Results Release Detection Device Monitoring Vapor Recordkeeping Form Release Detection Device Monitoring Liquid Recordkeeping Form Cert. of Compliance: Use for Automated Interstitial Monitoring of Emergency Power Generator UST

Cathodic Protection Testing Forms

These forms are used when conducting varies cathodic protection testing.

Galvanic Cathodic Protection System FormEvaluation Impressed Current CP System Evaluation Form Impressed Current CP System Record of Rectifier Operation Form

LDEQ Monthly and Annual Periodic Op and Maintenance Walkthrough Inspection Checklist

These forms can be used to conducted the required monthly and annual walkthrough inspections.

It is not a requirment to use this form.

Adobe Version Word Version PEI RP900: UST Inspection and Maintenance (2017 Edition) Document and Walkthrough Inspection Checklists

Alternative Fuel Form

This form is used do determine and document UST system compatibility with biofuels containing more than 10 percent ethanol or more than 20 percent biodiesel.

Checklist For Determining And Documenting UST System Compatibility-Adobe Version Checklist For Determining And Documenting UST System Compatibility-Word Version

UST System Equipment Testing/Inspection Form

PEI RP1200: Testing and Verification of Spill, Overfill, Leak Detection and Secondary Containment at UST Facilities (2019 Edition) Document and Testing/Inspection Checklists

Approved Alternative Testing Methods and Forms

LDEQ UST Containment Sump Integrity Verification Under High Water Table Conditions Procedure LDEQ UST Containment Sump Integrity Verification Under High Water Table Conditions Form LDEQ UST Containment Sump Low Liquid Level Hydrostatic Test Procedure LDEQ UST Containment Sump Low Liquid Level Hydrostatic Test Form Dri-sump Containment Tightness Testing Method Dri-sump Containment Tightness Testing Method Evaluation

Site Diagram Template

A template available for UST to submit system site diagram.

Site Diagram Template

Remediation Forms*

Conveyance Notice Forms

Complete when filing conveyance notice is required to close a remediation site

Conveyance Notice Form Conveyance Notice format for Industrial Soils and GW2 Zone

RECAP Input Parameter Form

Form is required to be submitted to LDEQ for all eligible Motor Fuels Underground Storage Tank Trust Fund Sites

RECAP Input Parameter Form

UST FAQs

*All documents linked on this page are considered archived documents and not ADA compliant, but the information is current and valid.