# 5 gal and 10 gal test drafts · 0.5 · normal and special tests · 3.31. Vehicle-Tank Meters — How far off a US fuel pump, LPG meter or EV charger is allowed to be (NIST Handbook 44)

For 5 gal and 10 gal test drafts · 0.5 · normal and special tests · 3.31. Vehicle-Tank Meters, device or commodity is 5 gal and 10 gal test drafts; accuracy class is 0.5; acceptance tolerance (new or newly repaired device) is 3 in3 and 5.5 in3; maintenance tolerance (device already in service) is 6 in3 and 11 in3; condition is normal and special tests, verified against its source on 2026-08-20.

- **Device or commodity:** 5 gal and 10 gal test drafts _(verified: appears in the quote below)_
- **Accuracy class:** 0.5 _(verified: appears in the quote below)_
- **Acceptance tolerance (new or newly repaired device):** 3 in3 and 5.5 in3 _(verified: appears in the quote below)_
- **Maintenance tolerance (device already in service):** 6 in3 and 11 in3 _(verified: appears in the quote below)_
- **Condition:** normal and special tests _(verified: appears in the quote below)_
- **Handbook 44 section:** 3.31. Vehicle-Tank Meters _(verified: appears in the quote below)_
- **Edition:** 2026 _(verified: appears in the quote below)_

## What the source says

> * For 5 gal and 10 gal test drafts, the tolerances specified for Accuracy Class 0.5 in the table above do not apply. For these test drafts, the maintenance tolerances on normal and special tests for 5 gal and 10 gal test drafts are 6 in3 and 11 in3, respectively. Acceptance tolerances on normal and special tests are 3 in3 and 5.5 in3.

## Source

- https://www.nist.gov/document/2026-nist-handbook-44-section-331

Last verified: 2026-08-20. Review by: 2027-08-20.
Part of [How far off a US fuel pump, LPG meter or EV charger is allowed to be (NIST Handbook 44)](https://referencesource.org/motor-fuel-dispenser-measurement-tolerances-nist/).