CFR›Title 48›Chapter 28›48 CFR Part 2804 Citation48 CFR Part 2804ContainsSubparts Subpart 2804.4–Subpart 2804.9CorpusDaily eCFRDisplayed edition2026-09-10Last updated2026-09-10 PART 2804—ADMINISTRATIVE MATTERS Subparts Subpart 2804.4 Subpart 2804.4—Safeguarding Classified Information Within Industry Subpart 2804.9 Subpart 2804.9—Taxpayer Identification Number Information Authority28 U.S.C. 510; 40 U.S.C. 486(c); 28 CFR 0.75(j) and 0.76(j).Source87 FR 47118, Aug. 2, 2022, unless otherwise noted.