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Select the document categories you hold. Get a self-reported research checklist with state-specific distinctions—not a safety verdict.
Check documents ↗Oil tank paperwork · Before a purchase or sale
The seller says it was removed. The tank was filled in place. The permit has no final record. Turn the unresolved question into a document checklist and the right official search.
63 routes across 12 states · Coverage varies by agency and document.
Guided official sources, plus direct Seattle residential dataset lookup.

Start with the question
Select the document categories you hold. Get a self-reported research checklist with state-specific distinctions—not a safety verdict.
Check documents ↗Start with the record
Already know you need a permit, verification letter or environmental file? Choose the actual record holder.
Find records by place and document ↗Start with the document
Find an oil tank No Further Action letter using NJDEP's date-specific route, DataMiner case reference and OPRA fallback for missing letters.
Use the spill reference to separate an incident listing from the underlying documents. Then follow up on the precise missing file.
Use the clean-decommissioning certificate route when looking for a registered closure without a leak project. It is separate from cleanup records.
Search Seattle Fire's residential UST dataset for oil tank permits and decommissioning details. Check missing reports and pre-1996 coverage limits.
Find the Release Tracking Number, then retrieve the cleanup submittals behind a reported heating-oil release. Fire removal records are a separate file.
Search bulk-storage registration by facility ID or address, then distinguish it from a spill case and local small-tank completion paperwork.
Look up a previous removal, not a new removal appointment.
Start with your question
A missing file, a seller’s claim, or documents that don’t agree. Each calls for a different next step.
Trace the permit, inspection, and completion file.
02 / UnderstandSeparate what the documents prove from what they leave open.
03 / VerifyMatch the claim to the property’s actual record trail.
Closure in place is not removal. Locate the work and sampling file.
Check a filled-in-place tank claim ↗Heating conversion does not establish what happened to the old tank.
Trace the former tank separately ↗Optional NJ/NY research assistance
If the record trail is still unresolved, ask us to review your NJ or NY property question. Our founder-led beta checks coverage before accepting research. A source-backed brief separates findings from gaps.
Ask for research help ↗Free beta · NJ/NY only · No automatic case acceptanceSee an illustrative brief ↗Permit and inspection references, matched to the property.
Missing closeout evidence and the limits of the available file.
Local knowledge matters
From a Nassau verification letter to a Montclair property file, the right route starts with the jurisdiction.
Find your research area ↗36 researched starting points. Other NJ/NY locations reviewed at intake.
Start a property record check
Send the property and your question. First, we confirm whether we can help and which records to pursue. You do not need an existing file to get started.