---
kind: "section"
citation: "10 C.F.R. § 217.31"
title: "10"
number: "217.31"
heading: "Priority ratings."
url: "https://uscodex.org/cfr/10/217.31"
---

# §217.31. Priority ratings.

- (a) **Levels of priority.**
  - (1) There are two levels of priority established by the Energy Priorities and Allocations System regulations, identified by the rating symbols “DO” and “DX”.
  - (2) **All DO-rated orders have equal priority with each other and take precedence over unrated orders.** All DX-rated orders have equal priority with each other and take precedence over DO-rated orders and unrated orders. (For resolution of conflicts among rated orders of equal priority, see [§ 217.34(c)](/cfr/10/217.34.md?p=c).)
  - (3) In addition, a Directive regarding priority treatment for a given item issued by the Department of Energy for that item takes precedence over any DX-rated order, DO-rated order, or unrated order, as stipulated in the Directive. (For a full discussion of Directives, see [§ 217.62](/cfr/10/217.62.md).)
- (b) **Program identification symbols.** Program identification symbols indicate which approved program is being supported by a rated order. The list of currently approved programs and their identification symbols are listed in Schedule 1, set forth as an appendix to [15 CFR part 700](/cfr/15/part700.md). For example, DO-F3 identifies a domestic energy construction program. Additional programs may be approved under the procedures of E.O. 12919 at any time. Program identification symbols do not connote any priority.
- (c) **Priority ratings.** A priority rating consists of the rating symbol—DO or DX—and the program identification symbol, such as F1, F2, or F3. Thus, a contract for a domestic energy construction program will contain a DO-F3 or DX-F3 priority rating.

## Notes

### Authority

Authority: Defense Production Act of 1950, as amended, 50 U.S.C. 4501-4568; E.O. 12919, as amended, (59 FR 29525 June 7, 1994).

### Source

Source: 76 FR 33619, June 9, 2011, unless otherwise noted.