# Hours of Service of Drivers of Commercial Motor Vehicles; Regulatory Guidance for Oilfield Exception
> **Federal Motor Carrier Safety Administration** · Notice of regulatory guidance; request for public comment. · Published 2012-06-05 · Effective 2012-06-05 · 77 FR 33098
## Document
- **Document number:** 2012-13584
- **Category:** motor-carrier
- **Sub-agency:** Federal Motor Carrier Safety Administration
- **Federal Register citation:** 77 FR 33098
- **CFR reference:** 49 CFR 395
- **Publication date:** 2012-06-05
- **Effective date:** 2012-06-05
- **DOT docket:** Docket No. FMCSA-2012-0183
## Abstract

FMCSA announces its revision of regulatory guidance to clarify the applicability of the "Oilfield operations" exceptions in 49 CFR 395.1(d) to the "Hours of Service of Drivers" regulations, and requests comments on the revision. The regulatory guidance is being revised to ensure consistent understanding and application of the regulatory exceptions.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/06/05/2012-13584/hours-of-service-of-drivers-of-commercial-motor-vehicles-regulatory-guidance-for-oilfield-exception)
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