US United States of America
  • 03 - Services, Company organization, Management and quality, Administration, Transport, Sociology
  • 13 - Environment and health protection, Safety
  • 19 - Testing
  • 43 - Road vehicle engineering
  • 84 - Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof
  • 87 - Vehicles other than railway or tramway rolling-stock, and parts and accessories thereof

Heavy-duty engines and vehicles; Spark-ignition reciprocating or rotary internal combustion piston engines (HS 8407); Compression-ignition internal combustion piston engines (diesel or semi-diesel engines) (HS 8408); Motor vehicles for the transport of ten or more persons, including the driver (HS 8702); Motor cars and other motor vehicles principally designed for the transport of persons (other than those of heading 87.02), including station wagons and racing cars (HS 8703); Motor vehicles for the transport of goods (HS 8704); Special purpose motor vehicles, other than those principally designed for the transport of persons or goods (for example, breakdown lorries (wreckers), crane lorries (mobile cranes), fire fighting vehicles, concrete mixer lorries (concrete-mixers), road sweeper lorries (road sweepers), spraying lorries (spraying vehicles), mobile workshops, mobile radiological units) (HS 8705); Quality (ICS 03.120), Air quality (ICS 13.040), Test conditions and procedures in general (ICS 19.020), Road vehicles in general (ICS 43.020), Commercial vehicles (ICS 43.080), Passenger cars. Caravans and light trailers (ICS 43.100)

Improvements for Heavy-Duty Engine and Vehicle Test Procedures, and Other Technical Amendments (222 page(s), in English)

Proposed rule - The Environmental Protection Agency (EPA) is proposing changes to the test procedures for heavy-duty engines and vehicles to improve accuracy and reduce testing burden. EPA is also proposing other regulatory amendments concerning light-duty vehicles, heavy-duty vehicles, highway motorcycles, locomotives, marine engines, other nonroad engines and vehicles, stationary engines. These would affect the certification procedures for exhaust emission standards, and related requirements. EPA is proposing similar amendments for evaporative emission standards for nonroad equipment and portable fuel containers. These amendments would increase compliance flexibility, harmonize with other requirements, add clarity, correct errors, and streamline the regulations. Given the nature of the proposed changes, they would have neither significant environmental impacts nor significant economic impacts for any sector.