CFR›Title 48›Chapter 2›Part 223›Subpart 223.73 ContainsSections 223.7300–223.7306CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 Subpart 223.73—Minimizing the Use of Materials Containing Hexavalent Chromium Sections 223.7300 223.7300 Definition. 223.7301 223.7301 Policy. 223.7302 223.7302 [Reserved] 223.7303 223.7303 Prohibition. 223.7304 223.7304 Exceptions. 223.7305 223.7305 Authorization and approval. 223.7306 223.7306 Contract clause. Source76 FR 25575, May 5, 2011, unless otherwise noted. Previous 223.72 Subpart 223.72—Safeguarding Sensitive Conventional Arms, Ammunition, and Explosives Next 223.74 Subpart 223.74—Prohibition on Procurement of Certain Items Containing Perfluoroalkyl or Polyfluoroalkyl Substances