42 USC § 16102 - Diesel fueled vehicles

---
identifier: "/us/usc/t42/s16102"
source: "usc"
legal_status: "official_prima_facie"
title: "42 USC § 16102 - Diesel fueled vehicles"
title_number: 42
title_name: "THE PUBLIC HEALTH AND WELFARE"
section_number: "16102"
section_name: "Diesel fueled vehicles"
chapter_number: 149
chapter_name: "NATIONAL ENERGY POLICY AND PROGRAMS"
subchapter_number: "VII"
subchapter_name: "VEHICLES AND FUELS"
part_number: "D"
part_name: "Miscellaneous"
positive_law: false
currency: "119-84"
last_updated: "2026-04-17"
format_version: "1.1.0"
generator: "[email protected]"
source_credit: "(Pub. L. 109–58, title VII, § 754, Aug. 8, 2005, 119 Stat. 828.)"
---


# § 16102. Diesel fueled vehicles

**(a)** **Definition of tier 2 emission standards** February 10, 2000

In this section, the term “tier 2 emission standards” means the motor vehicle emission standards that apply to passenger cars, light trucks, and larger passenger vehicles manufactured after the 2003 model year, as issued on , by the Administrator of the Environmental Protection Agency under sections 7521 and 7545 of this title.

**(b)** **Diesel combustion and after-treatment technologies** The Secretary shall accelerate efforts to improve diesel combustion and after-treatment technologies for use in diesel fueled motor vehicles.

**(c)** **Goals** The Secretary shall carry out subsection (b) with a view toward achieving the following goals:

**(1)** Developing and demonstrating diesel technologies that, not later than 2010, meet the following standards:

**(A)** Tier 2 emission standards.

**(B)** The heavy-duty emissions standards of 2007 that are applicable to heavy-duty vehicles under regulations issued by the Administrator of the Environmental Protection Agency as of August 8, 2005.

**(2)** Developing the next generation of low-emission, high efficiency diesel engine technologies, including homogeneous charge compression ignition technology.

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**Source Credit**: (Pub. L. 109–58, title VII, § 754, Aug. 8, 2005, 119 Stat. 828.)