Taipei, Aug. 5 (CNA) Taiwan's Mainland Affairs Council (MAC) said Wednesday that China's newly announced entry-exit regulations contain vaguely defined national security provisions and give authorities broad discretion to restrict people's movement, potentially increasing the risks faced by Taiwanese traveling there. The regulations, promulgated by China's State Council on July 31, are scheduled to take effect on Sept. 15. The regulations do not explicitly state how the new exit-ban provisions will apply to Taiwanese visiting China, nor do they classify Taiwanese as Chinese citizens or foreigners. However, Beijing's long-standing position is that Taiwanese are "Chinese citizens residing in the Taiwan region," rather than foreign nationals. During the legislative session, Chiu was asked whether the risks associated with entering and leaving China had increased for both Chinese and foreign nationals.