Code of Federal Regulations Title 41. Public Contracts and Property Management § 41.102–118.545 What information must a TSP claim include?

(a) The signature of an individual or party legally entitled to receive payment for services on behalf of the TSP;

(b) The signature of the TSP's agent or attorney accompanied by a duly executed power of attorney or other documentary evidence of the agent's or attorney's right to act for the TSP;  or

(c) An electronic signature, when mutually agreed upon.