Tex. Health and Safety Code § 756.011: TYPES OF REFRIGERATORS AND CONTAINERS COVERED.

This subchapter applies only to a refrigerator, ice box, or other airtight or semi-airtight container that has:

(1) a capacity of at least 1-1/2 cubic feet;

(2) an opening of at least 50 square inches; and

(3) a door or lid equipped with a latch or other fastening device capable of securing the door or lid shut.

Acts 1989, 71st Leg., ch. 678, Sec. 1, eff. Sept. 1, 1989.