Tex. Health & Safety Code § 440.015

A frozen dessert, imitation frozen dessert, product sold in semblance of a frozen dessert, or a mix for one of those products from a manufacturer located outside this state may be sold or distributed in this state if the manufacturer complies with this chapter or complies with other regulatory requirements that are substantially equivalent to those of this state. To determine the extent of the manufacturer's compliance, the department may accept reports from responsible authorities in the jurisdiction in which the manufacturer is located.