### Question
Can you define what advanced insulation means?


### Answer
**Advanced insulation** is defined as the following in *42 U.S.C. § 17242*:

> insulation that has an R value of not less than R35 per inch

#### Citation:
  - *42 U.S.C. § 17242*
  - Heading: **CHAPTER 152-ENERGY INDEPENDENCE AND SECURITY > SUBCHAPTER V-ACCELERATED RESEARCH AND DEVELOPMENT > Part E-Miscellaneous Provisions**

