---
kind: "section"
citation: "10 C.F.R. § 503.4"
title: "10"
number: "503.4"
heading: "Purpose and scope."
url: "https://uscodex.org/cfr/10/503.4"
---

# §503.4. Purpose and scope.


This subpart establishes the general requirements necessary to qualify for either a temporary or permanent exemption under this part and sets out the methodology for calculating the cost of using an alternate fuel and the cost of using imported petroleum.


## Notes

### Authority

Authority: Department of Energy Organization Act, Pub. L. 95-91, 91 Stat. 565 (42 U.S.C. § 7101 et seq. ); Powerplant and Industrial Fuel Use Act of 1978, Pub. L. 95-620, 92 Stat. 3289 (42 U.S.C. 8301 et seq. ); Energy Security Act, Pub. L. 96-294, 94 Stat. 611 (42 U.S.C. 8701 et seq. ); E.O. 1209, 42 FR 46267, September 15, 1977.

### Source

Source: 46 FR 59903, Dec. 7, 1981, unless otherwise noted.