UST‑6 Application Form – Fillable PDF

The UST‑6 Application Form is required by the North Carolina Department of Environmental Quality (DEQ) for owners and operators of underground storage tanks (USTs) who need to certify pre‑installation information, report modifications, or request approvals. This page gives you everything you need to download, fill out, and submit the form quickly using Formize’s online PDF filler.

What is the UST‑6 Form?

The UST‑6 is a certification and pre‑installation questionnaire that ensures UST systems meet state environmental standards. It collects details about tank location, design, materials, and compliance measures. Submitting a correctly completed UST‑6 helps avoid penalties and keeps your operation compliant with North Carolina regulations.

How to Fill Out the UST‑6 Online

Instead of printing the PDF and using a third‑party editor, simply click the "Fill out this form" button on this page. The Formize PDF Filler app will load directly in your browser, allowing you to type, select dates, and sign electronically.

Common Mistakes to Avoid

• Leaving required fields blank – the filler will highlight missing information before you can submit.
• Using outdated tank specifications – double‑check that the data matches the most recent engineering drawings.
• Forgetting to attach supporting documents – upload any required permits or inspection reports in the designated attachment sections.

Download the Fillable PDF

If you prefer to work offline, you can download the official UST‑6 PDF using the link below. The file is fully fillable with standard PDF readers, but we recommend the online Formize filler for a smoother experience.

Download UST‑6 Application Form (PDF)

FAQs About the UST‑6 Application

Find quick answers to the most common questions below. If you need further assistance, consult the DEQ guidance documents linked on the form.