# the number of petroleum underground storage tanks for which assurance must be provided exceeds 100 · Federal · annual aggregate — Underground storage tank financial responsibility minimum coverage amounts

For the number of petroleum underground storage tanks for which assurance must be provided exceeds 100 · Federal · annual aggregate, jurisdiction is Federal; coverage tier / owner category is the number of petroleum underground storage tanks for which assurance must be provided exceeds 100; basis is annual aggregate; amount is $2 million; condition or mechanism is by the anniversary of the date on which the mechanism demonstrating financial responsibility became effective, recorded from its source on 2026-08-26.

- **Jurisdiction:** Federal _(verified: appears in the quote below)_
- **Coverage tier / owner category:** the number of petroleum underground storage tanks for which assurance must be provided exceeds 100 _(verified: appears in the quote below)_
- **Basis:** annual aggregate _(our reading, not quoted from the source)_
- **Amount:** $2 million _(verified: appears in the quote below)_
- **Condition or mechanism:** by the anniversary of the date on which the mechanism demonstrating financial responsibility became effective _(verified: appears in the quote below)_
- **Source citation:** 40 CFR 280.93 _(verified: appears in the quote below)_

## What the source says

> (f) Owners or operators shall review the amount of aggregate assurance provided whenever additional petroleum underground storage tanks are acquired or installed. If the number of petroleum underground storage tanks for which assurance must be provided exceeds 100, the owner or operator shall demonstrate financial responsibility in the amount of at least $2 million of annual aggregate assurance by the anniversary of the date on which the mechanism demonstrating financial responsibility became effective.

## Source

- https://www.ecfr.gov/current/title-40/chapter-I/subchapter-I/part-280/subpart-H/section-280.93

Last verified: 2026-08-26. Review by: 2027-08-26.
Part of [Underground storage tank financial responsibility minimum coverage amounts](https://referencesource.org/ust-financial-responsibility-minimum-coverage/).