### Question
How is the "major portion" defined?


### Answer
The term **major portion** is defined in *16 U.S.C. § 839f* as follows -

> provided by regulations issued by the Secretary of the Treasury.

#### Citation:
  - *16 U.S.C. § 839f*
  - Heading: **CHAPTER 12H-PACIFIC NORTHWEST ELECTRIC POWER PLANNING AND CONSERVATION**

