### Question
Can you define what properly trained and certified means?


### Answer
**Properly trained and certified** is defined as the following in *42 U.S.C. § 7671h*:

> training and certification in the proper use of approved refrigerant recycling equipment for motor vehicle air conditioners in conformity with standards established by the Administrator and applicable to the performance of service on motor vehicle air conditioners

#### Citation:
  - *42 U.S.C. § 7671h*
  - Heading: **CHAPTER 85-AIR POLLUTION PREVENTION AND CONTROL > SUBCHAPTER VI-STRATOSPHERIC OZONE PROTECTION**

