At present, all the 21 APEC member economies are fully participating members of the APEC Business Travel Card scheme (ABTC scheme), including the People's Republic of China (including Hong Kong SAR and Chinese Taipei), Japan, the Republic of Korea, Malaysia, Indonesia, Brunei, Philippines, Singapore, Thailand, Vietnam, Australia, New Zealand, Papua New Guinea, Chile, Peru, Mexico, the United States of America, Canada, and Russia. Currently, the United States of America and Canada are transitional members of the ABTC scheme, which means that they are not able to receive travel card applications from other member economies but will aid the ABTC holders from other member economies in visa applications and entry and exit customs clearance. Personnel exchanges between the Chinese Mainland, Hong Kong SAR, and Taiwan shall abide by the current personnel exchange regulations.