REREV

Expert advice on car parts, maintenance, and repair.

  • Articles
  • Cars
    • Celebrity car collections
    • Car years to avoid
  • Tires
    • Tire and store reviews
  • Glossary
  • Statistics

Emission standards definition and meaning

a highway filled with lots of traffic on a sunny day.
a woman with long hair posing for a picture.
Lilit Farmazian September 5, 2022 |

Emission standards are a set of regulations that limit the amount of pollutants that can be released into the atmosphere. These standards vary from country to country, but typically involve setting maximum limits for certain pollutants, such as carbon monoxide, nitrogen oxides, and hydrocarbons.

In cars, emission standards are typically accomplished through the use of catalytic converters. These devices work by converting harmful pollutants into less harmful substances before they are released into the air.

There are a number of different emission standards that have been adopted around the world. The most stringent of these is the European Union’s Euro 6 standard, which requires vehicles to emit no more than 120 grams of CO2 per kilometer driven. This standard is currently being phased in, and all new cars sold in the EU must meet it by 2021.

In the United States, the emission standards are set by the Environmental Protection Agency (EPA). The current standard is known as Tier 3, and it requires vehicles to emit no more than 90 grams of CO2 per kilometer driven.

Previous post: Leg room
Next post: Car overheating when idle
a woman with long hair posing for a picture.

Lilit Farmazian

Lilit is a car enthusiast and writer who has been writing about cars for years in her spare time. She loves nothing more than taking on new projects involving all things automotive.

REREV logo

Website

  • About
  • Contact
  • Terms
  • Privacy

Best tire brands

  • BFGoodrich
  • Bridgestone
  • Continental
  • Cooper
  • Falken
  • Firestone
  • Goodyear
  • Hankook
  • Kumho
  • Mastercraft
  • Michelin
  • Nexen
  • Pirelli
  • Toyo
  • Yokohama

Car Insights

  • Years to avoid
  • Collections
  • Statistics
  • Glossary

© 2022 REREV. All rights reserved.