FAR and DFARS › DFARS Part 201: Federal Acquisition Regulations System › Subpart 201.3

DFARS 201.303 Publication and codification.

The codified text (eCFR, as of 2026-10-02). Under the Revolutionary FAR Overhaul ↗, agencies follow class deviations with new text for many parts while the formal rules go through the Federal Register: check the solicitation and your contract's clauses, which rule.

In plain English

This section explains how the DFARS is organized and numbered in the Code of Federal Regulations. It describes how DFARS text is numbered to match its FAR counterpart when possible, and how supplemental numbering is used when text cannot be integrated with the FAR. This matters to contractors because it helps them locate and cite the correct DFARS provisions.

Applies to: The DFARS and its numbering system

Key terms: DFARS · FAR · implemental numbering · supplemental numbering · Code of Federal Regulations

Written by AI from this section's text. A guide, not legal advice: the text below rules.

The text

(a)(i) The DFARS is codified under chapter 2 in title 48, Code of Federal Regulations.

(ii) To the extent possible, all DFARS text (whether implemental or supplemental) is numbered as if it were implemental. Supplemental numbering is used only when the text cannot be integrated intelligibly with its FAR counterpart.

(A) Implemental numbering is the same as its FAR counterpart, except when the text exceeds one paragraph, the subdivisions are numbered by skipping a unit in the FAR 1.105-2(b)(2) prescribed numbering sequence. For example, three paragraphs implementing FAR 19.501 would be numbered 219.501 (1), (2), and (3) rather than (a), (b), and (c). Three paragraphs implementing FAR 19.501(a) would be numbered 219.501(a) (i), (ii), and (iii) rather than (a) (1), (2), and (3). Further subdivision of the paragraphs follows the prescribed numbering sequence, e.g., 219.501(1)(i)(A)(1)(i).

(B) Supplemental numbering is the same as its FAR counterpart, with the addition of a number of 70 and up or (S-70) and up. Parts, subparts, sections, or subsections are supplemented by the addition of a number of 70 and up. Lower divisions are supplemented by the addition of a number of (S-70) and up. When text exceeds one paragraph, the subdivisions are numbered using the FAR 1.105-2(b)(2) prescribed sequence, without skipping a unit. For example, DFARS text supplementing FAR 19.501 would be numbered 219.501-70. Its subdivisions would be numbered 219.501-70 (a), (b), and (c).

(C) Subdivision numbering below the 4th level does not repeat the numbering sequence. It uses italicized Arabic numbers and then italicized lower case Roman numerals.

(D) An example of DFARS numbering is in Table 1-1, DFARS Numbering.

(iii) Department/agency and component supplements must parallel the FAR and DFARS numbering, except department/agency supplemental numbering uses subsection numbering of 90 and up, instead of 70 and up.

Table 1-1—DFARS Numbering

Sections it refers to

← 201.301 Policy. · 201.304 Agency control and compliance procedures. →

Rule changes for DFARS Part 201

Source: eCFR, 48 CFR chapters 1 and 2 (GPO GovInfo bulk data) ↗. Plain words for the terms: glossary.

DFARS 201.303 Publication and codification · SpendQuery