Section 114.31 - Restrictions(a)Mail importations. Carnets shall not be accepted for importations by mail.(b)Temporary importations. Merchandise not entitled to temporary importation under bond shall not be imported under cover of an A.T.A. or TECRO/AIT carnet.(c)Transportation in bond. Except as provided in § 18.43 of this chapter, merchandise not entitled to transportation in bond shall not be transported under cover of a TIR carnet.T.D. 71-70, 36 FR 4491, Mar. 6, 1971, as amended by T.D. 85-180, 50 FR 42517, Oct. 21, 1985; T.D. 98-10, 63 FR 4168, Jan. 28, 1998