# Special Regulations, Areas of the National Park System
> **National Park Service** · Final Rule. · Published 2001-01-22 · Effective 2001-02-21 · 66 FR 7260
## Document
- **Document number:** 01-1944
- **Category:** park-regulation
- **Sub-agency:** National Park Service
- **Federal Register citation:** 66 FR 7260
- **CFR reference:** 36 CFR 7
- **Publication date:** 2001-01-22
- **Effective date:** 2001-02-21
## Abstract

The National Park Service (NPS) is phasing out snowmobile use in Yellowstone National Park (Yellowstone), the John D. Rockefeller, Jr., Memorial Parkway (the Parkway), and, with some exceptions, in Grand Teton National Park (Grand Teton), and snowplane use in Grand Teton. This implements portions of an approved Winter Use Management Plan for the parks, to come into compliance with the legal requirements that apply to snowmobile use in national parks.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2001/01/22/01-1944/special-regulations-areas-of-the-national-park-system)
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