Home › CFR › Title 5 › Part 16905 CFR Part 1690 — Thrift Savings PlanSubpart A — General§ 1690.1— Definitions.Subpart B — Miscellaneous§ 1690.11— Plan year.§ 1690.12— Power of attorney.§ 1690.13— Guardianship and conservatorship orders.§ 1690.14— Checks made payable to the Thrift Savings Plan.§ 1690.15— Freezing an account—administrative holds.