48 CFR § 211.170 - 211.170 Use of proprietary specifications or standards.
---
identifier: "/us/cfr/t48/s211.170"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "48 CFR § 211.170 - 211.170 Use of proprietary specifications or standards."
title_number: 48
title_name: "Federal Acquisition Regulations System"
section_number: "211.170"
section_name: "211.170 Use of proprietary specifications or standards."
chapter_number: 2
chapter_name: "DEFENSE ACQUISITION REGULATIONS SYSTEM, DEPARTMENT OF DEFENSE"
subchapter_number: "B"
subchapter_name: "ACQUISITION PLANNING"
part_number: "211"
part_name: "DESCRIBING AGENCY NEEDS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "41 U.S.C. 1303 and 48 CFR chapter 1."
regulatory_source: "60 FR 61594, Nov. 30, 1995, unless otherwise noted."
cfr_part: "211"
---
# 211.170 211.170 Use of proprietary specifications or standards.
A justification and approval is required to use proprietary specifications and standards—
(1) When using sealed bidding or negotiated acquisition procedures (see 206.302-1(S-70) for justification requirements); or
(2) When using the simplified procedures for certain commercial products or commercial services at FAR 13.5 (see 213.501(a)(ii) for justification requirements).
[84 FR 25192, May 31, 2019, as amended at 88 FR 6581, Jan. 31, 2023]