Use of computers for training permitted within bonded premises by STP units, subject to export-obligation compliance. STP units may use computer systems in their bonded premises for training, including commercial training, provided no computer terminal is installed outside the bonded area. Training use-whether for unit personnel or third parties-is compatible with the units' export-oriented purpose, remains subject to compliance with export obligations and relevant Customs provisions, and is permitted even after export obligations are completed, so long as training is conducted within the bonded premises.