### Question
What is the definition of coal combustion byproducts?


### Answer
The definition of **coal combustion byproducts** is as follows in *42 U.S.C. § 13364*:

> the residues from the combustion of coal including ash, slag, and flue gas desulfurization materials

#### Citation:
  - *42 U.S.C. § 13364*
  - Heading: **CHAPTER 134-ENERGY POLICY > SUBCHAPTER VI-COAL > Part C-Other Coal Provisions**

