Idaho Code § 25-1123
A sucking calf or colt without brand, accompanying its mother in any shipment, shall be deemed to bear the same brand as its mother for the purposes of this chapter.
Any person desiring to transport any livestock from the boundaries of this state by any means for the purpose of seasonally grazing the livestock in an adjoining state, shall apply before doing so to the state brand inspector for an inspection; provided, however, that if the state brand inspector determines that an inspection is not necessary, he may issue a written permit without charge to allow such transport. If in the opinion of the state brand inspector an inspection is deemed advisable, such inspection shall be made at one-half (1/2) the usual brand inspection fee and the provisions of section 25-232, section 25-2505, and section 25-2907, Idaho Code, shall not apply.
Idaho Code § 25-1123