CFR›Title 10›Chapter I›Part 9›Subpart E ContainsSections 9.300–9.301CorpusDaily eCFRDisplayed edition2026-05-12Last updated2026-05-12 Subpart E—Social Security Number Fraud Prevention Act Requirements Sections 9.300 § 9.300 Scope of subpart. 9.301 § 9.301 Social Security account numbers in documents sent by mail. Source85 FR 33529, June 2, 2020, unless otherwise noted. Previous D Subpart D—Production or Disclosure in Response to Subpoenas or Demands of Courts or Other Authorities