Tex. Business & Commerce Code § 621.202

(a) For each contest other than a drawing, the offeror shall maintain until the second anniversary of the date the last prize was awarded:

(1) records of the identity and address of each person who is responsible for developing, creating, sponsoring, or implementing any part of the advertising plan or program;

(2) records that show that the winning numbers have been deposited in the mail or otherwise made available to recipients in accordance with the odds statement provided under Section 621.104(a);

(3) a copy of each contest solicitation;

(4) records adequate to determine:

(A) the name and address of each contestant;

(B) the approximate date each contestant was sent the solicitation used in the contest;

(C) the number of major prizes awarded;

(D) the date each major prize was awarded;

(E) the name, brand, type, model number, and manufacturer of each prize offered;

(F) the method of computing the retail value of each prize;

(G) the method of selecting major prize winners;

(H) the name and address of each major prize winner; and

(I) the facts on which each representation or disclosure made in connection with the contest was based and from which the validity of the representation or disclosure can be determined.

(b) Postal receipt records, affidavits of mailing, and a list of winners or recipients of the major prizes satisfy the requirements of Subsection (a)(2).