### Question
How does Motor Vehicle Emission and Fuel Standards define toxic air pollutants?


### Answer
Under *42 U.S.C. § 7545*, **toxic air pollutants** is defined as:

> the aggregate emissions of the following:


Benzene


1,3 Butadiene


Polycyclic organic matter (POM)


Acetaldehyde


Formaldehyde

#### Citation:
  - *42 U.S.C. § 7545*
  - Heading: **CHAPTER 83-ENERGY EXTENSION SERVICE > SUBCHAPTER II-EMISSION STANDARDS FOR MOVING SOURCES > Part A-Motor Vehicle Emission and Fuel Standards**

