# Parts and Accessories Necessary for Safe Operation; Fuel Tank Overfill Restriction
> **Federal Motor Carrier Safety Administration** · Final rule. · Published 2026-02-19 · Effective 2026-03-23 · 91 FR 7880
## Document
- **Document number:** 2026-03265
- **Category:** motor-carrier
- **Sub-agency:** Federal Motor Carrier Safety Administration
- **Federal Register citation:** 91 FR 7880
- **CFR reference:** 49 CFR 393
- **Publication date:** 2026-02-19
- **Effective date:** 2026-03-23
- **DOT docket:** Docket No. FMCSA-2025-0117
## Abstract

FMCSA removes the requirement in the Federal Motor Carrier Safety Regulations (FMCSR) that a liquid fuel tank manufactured on or after January 1, 1973, be designed and constructed so that it cannot be filled, in a normal filling operation, with a quantity of fuel that exceeds 95 percent of the tank's liquid capacity. This final rule responds to a petition for rulemaking from the Commercial Vehicle Safety Alliance (CVSA). The revision removes an unnecessary and outdated requirement from the FMCSRs.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2026/02/19/2026-03265/parts-and-accessories-necessary-for-safe-operation-fuel-tank-overfill-restriction)
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