# Parts and Accessories Necessary for Safe Operation; Authorized Windshield Area for the Installation of Vehicle Safety Technology
> **Federal Motor Carrier Safety Administration** · Final rule. · Published 2022-03-07 · Effective 2022-05-06 · 87 FR 12596
## Document
- **Document number:** 2022-03996
- **Category:** motor-carrier
- **Sub-agency:** Federal Motor Carrier Safety Administration
- **Federal Register citation:** 87 FR 12596
- **CFR reference:** 49 CFR 393
- **Publication date:** 2022-03-07
- **Effective date:** 2022-05-06
- **DOT docket:** Docket No. FMCSA-2021-0037
## Abstract

FMCSA amends the Federal Motor Carrier Safety Regulations (FMCSRs) to increase the area on the interior of commercial motor vehicle (CMV) windshields where certain vehicle safety technology devices may be mounted. In addition, FMCSA adds items to the definition of vehicle safety technology. This final rule responds to a rulemaking petition from Daimler Trucks North America (DTNA).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2022/03/07/2022-03996/parts-and-accessories-necessary-for-safe-operation-authorized-windshield-area-for-the-installation)
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