Confiscation of conveyances: conveyances used to conceal or smuggle goods risk seizure unless owner proves lack of knowledge. Conveyances are liable to confiscation if constructed, adapted or used to conceal goods; if goods are thrown overboard, staved or destroyed to prevent seizure; if required to stop or land but fail to do so; if warehoused or drawback claimed export goods are unloaded without permission; or if imported goods are found substantially missing after entry unless the master accounts for the loss. Conveyances or animals used in smuggling are likewise liable unless the owner proves lack of knowledge or connivance, and owners of hire conveyances may opt to pay a fine in lieu of confiscation up to the market price of seized goods.