### Question
How is the "specialty application mercury vapor lamp ballast" defined?


### Answer
The term **specialty application mercury vapor lamp ballast** is defined in *42 U.S.C. § 6291* as follows -

> a mercury vapor lamp ballast that—


(A) is designed and marketed for operation of mercury vapor lamps used in quality inspection, industrial processing, or scientific use, including fluorescent microscopy and ultraviolet curing

#### Citation:
  - *42 U.S.C. § 6291*
  - Heading: **CHAPTER 77-ENERGY CONSERVATION > SUBCHAPTER III-IMPROVING ENERGY EFFICIENCY > Part A-Energy Conservation Program for Consumer Products Other Than Automobiles**

