(a) Generally. Frozen desserts from points beyond the limits of routine inspection of the State of Texas may be sold in the State of Texas, provided they are manufactured and/or pasteurized under provisions which are substantially equivalent to the requirements of this regulation as determined in writing by the department.(b) Approval of supplies. Subject to laboratory tests upon arrival, the department shall approve, without inspection, supplies of frozen dessert mix, and frozen desserts from an area not under the department's routine inspection:(1) when these products are manufactured and/or pasteurized under regulations equivalent to those of this regulation; or(2) when these products are under routine official supervision.