### Question
How does the law define TDA?


### Answer
Under *42 U.S.C. § 6313*, **TDA** is defined as:

> the total display area (ft[2](#6313_2_target)) of the refrigerated case, as defined in AHRI Standard 1200

#### Citation:
  - *42 U.S.C. § 6313*
  - Heading: **CHAPTER 77-ENERGY CONSERVATION > SUBCHAPTER III-IMPROVING ENERGY EFFICIENCY > Part A&ndash;1-Certain Industrial Equipment**

