48 CFR § 223.7304 - 223.7304 Exceptions.
---
identifier: "/us/cfr/t48/s223.7304"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "48 CFR § 223.7304 - 223.7304 Exceptions."
title_number: 48
title_name: "Federal Acquisition Regulations System"
section_number: "223.7304"
section_name: "223.7304 Exceptions."
chapter_number: 2
chapter_name: "DEFENSE ACQUISITION REGULATIONS SYSTEM, DEPARTMENT OF DEFENSE"
subchapter_number: "D"
subchapter_name: "SOCIOECONOMIC PROGRAMS"
part_number: "223"
part_name: "ENVIRONMENT, SUSTAINABLE ACQUISITION, AND MATERIAL SAFETY"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "41 U.S.C. 1303 and 48 CFR chapter 1."
regulatory_source: "56 FR 36365, July 31, 1991, unless otherwise noted."
cfr_part: "223"
---
# 223.7304 223.7304 Exceptions.
The prohibition in 223.7303 does not apply to—
(a) Legacy systems and their related parts, subsystems, and components that already contain hexavalent chromium. However, alternatives to hexavalent chromium shall be considered by the appropriate official during system modifications, follow-on procurements of legacy systems, or maintenance procedure updates; and
(b) Additional sustainment related contracts (e.g., parts, services) for a system in which use of hexavalent chromium was previously approved.