Code of Federal Regulations Title 5. Administrative Personnel § 5.1690.12 Power of attorney

(a) A participant or beneficiary can appoint an agent to conduct business with the TSP on his or her behalf by using a power of attorney (POA). The agent is called an attorney-in-fact. The TSP must approve a POA before the agent can conduct business with the TSP;  however, the TSP will accept a document that was signed by the agent before the TSP approved the POA. The TSP will approve a POA if it meets the following conditions:

(b) General power of attorney. A general POA gives an agent unlimited authority to conduct business with the TSP, including the authority to sign any TSP–related document. Additional information regarding general powers of attorney can be accessed at http://www.tsp.gov.

(c) Specific power of attorney. A specific power of attorney gives an agent the authority to conduct specific TSP transactions. A specific POA must expressly describe the authority it grants. Additional information regarding special powers of attorney, as well as a sample form, can be accessed at http://www.tsp.gov.