# Exhaust Emission Standards for 2012 and Later Model Year Snowmobiles
> **Rule** · Direct final rule. · Published 2008-06-25 · Effective 2008-08-25 · 73 FR 35946
## Document
- **Document number:** E8-14411
- **Category:** air-emissions
- **Federal Register citation:** 73 FR 35946
- **CFR reference:** 40 CFR 1051
- **Publication date:** 2008-06-25
- **Effective date:** 2008-08-25
- **EPA docket:** EPA-HQ-OAR-2008-0124
## Abstract

In a November 2002 final rule, we established the first U.S. emission standards for new snowmobiles. Subsequent litigation regarding that final rule resulted in a court decision which requires us to: remove the oxides of nitrogen (NO<INF>X</INF>) component from the Phase 3 snowmobile standards set to take effect in 2012, and; clarify the evidence and analysis upon which the Phase 3 carbon monoxide (CO) and hydrocarbon (HC) standards were based. In this action, we are removing the NO<INF>X</INF> component from the Phase 3 emission standard calculation. We are deferring action on the 2012 CO and HC emission standards portion of the court's remand to a separate rulemaking action.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2008/06/25/E8-14411/exhaust-emission-standards-for-2012-and-later-model-year-snowmobiles)
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