Pub. L. 87-649, tit. 37, ch. 7, sec. 409
Travel and transportation allowances: trailers
§ 409. Travel and transportation allowances: trailers Under regulations prescribed by the Secretaries concerned and in place of the transportation of baggage and household effects or payment of a dislocation allowance, a member, or in the case of his death his dependent, who would otherwise be entitled to transportation of baggage and household goods under section 406 of this title, may transport a house trailer or mobile dwelling within the United States, except in Hawaii or Alaska, for use as a residence by one of the following means— (1) transport the trailer or dwelling and receive a monetary allowance in place of transportation at a rate to be prescribed by the Secretaries concerned, but not more than 20 cents a mile; (2) deliver the trailer or dwelling to an agent of the United States for transportation by commercial means; or (3) transport the trailer or dwelling by commercial means and be reimbursed by the United States subject to such rates as may be prescribed by the Secretaries concerned. However, the cost of transportation under clause (2) or the reimbursement under clause (3) may not be more than the lesser of (A) the current average cost for the commercial transportation of a house trailer or mobile dwelling; (B) 36 cents a mile; or (C) the cost of transporting the baggage and household effects of the member or his dependent plus the dislocation allowance authorized in section 407 of this title. Any payment authorized by this section may be made in advance of the transportation concerned.