CFR › Title 48 › Part 2104Part 2104 — Administrative MattersSubpart 2104.7 — Contractor Records Retention§ 2104.703— Policy.Subpart 2104.9 — Taxpayer Identification Number§ 2104.9001— Contract clause.Subpart 2104.70 — Designation of Authorized Personnel§ 2104.7001— Designation of authorized personnel.