# Control of Air Pollution From New Motor Vehicles and New Motor Vehicle Engines; Non-Conformance Penalties for 2004 and later Model Year Emission Standards for Heavy-Duty Diesel Engines and Heavy-Duty Diesel Vehicles
> **Rule** · Final rule. · Published 2002-08-08 · Effective 2002-08-08 · 67 FR 51464
## Document
- **Document number:** 02-19981
- **Category:** air-emissions
- **Federal Register citation:** 67 FR 51464
- **CFR reference:** 40 CFR 86
- **Publication date:** 2002-08-08
- **Effective date:** 2002-08-08
- **EPA docket:** AMS-FRL-7256-5
## Abstract

EPA is finalizing nonconformance penalties (NCPs) for the 2004 and later model year non-methane hydrocarbons and nitrogen oxides (NMHC+NO<INF>X</INF>) standard for heavy-duty diesel engines and vehicles. In general, the availability of NCPs allows a manufacturer of heavy-duty engines (HDEs) whose engines fail to conform with the applicable 2004 model year emission standards, but do not exceed a designated upper limit, to be issued a certificate of conformity upon payment of a monetary penalty. This final rule establishes the upper limit associated with the 2004 emission standard for NMHC+NO<INF>X</INF> as 4.5 grams per brake-horsepower-hour for light and medium heavy-duty engines and urban buses, and 6.0 grams per brake- horsepower-hour for heavy heavy-duty engines. Based on these upper limits, this rule also establishes the cost inputs used in the general NCP formula currently in the regulations.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2002/08/08/02-19981/control-of-air-pollution-from-new-motor-vehicles-and-new-motor-vehicle-engines-non-conformance)
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