<Li> International Certificate of Vaccination required . </Li> <Li> Registration within 72 hours is mandatory prior to arrival . Registration is good for the life of the passport . </Li> <Tr> <Td> Chile </Td> <Td> Visa not required </Td> <Td> 90 days </Td> <Td> </Td> </Tr> <Tr> <Td> China </Td> <Td> Visa required </Td> <Td> </Td> <Td> <Ul> <Li> Registration mandatory within 24 hours of arrival; </Li> <Li> All visitors are fingerprinted on arrival and departure between the ages of 14 and 70 . </Li> <Li> 72 - hours visa free visit when in transit at Changsha, Chengdu, Chongqing, Dalian, Guangzhou, Guilin, Harbin, Kunming, Qingdao, Shenyang, Wuhan, Xi'an and Xiamen . 144 - hours visa free visit when in transit at Beijing (Beijing Capital International Airport), Hangzhou, Hebei (Shijiazhuang Zhengding International Airport), Nanjing, Shanghai (Hongqiao and Pudong international airports, Railway Station and port), and Tianjin (Tianjin Binhai International Airport). Hong Kong, Macau, and Taiwan do count as third countries under this policy . </Li> <Li> Visas for US citizens are valid for up to 10 years . </Li> </Ul> </Td> </Tr>

Where can a us citizen travel without a visa