持有美国十年签证的中国持有者需要每两年更新自己的信息，

这个每两年更新的要求，不是新签证，而是因为十年签证时间过长，怕旅行者的信息有变化。

see this https://www.cbp.gov/travel/international-visitors/electronic-visa-update-system-evus/frequently-asked-questions

If he already updated his information online within last two years, he can travel to US now. 

if he update his information today, see this FAQ

How long will it take for my EVUS enrollment to be approved?

The vast majority of EVUS enrollments will be processed within minutes; however, it may take up to 72 hours. CBP recommends enrolling in EVUS well in advance of your planned travel.

 

所有跟帖： 

• 万分感谢。还想问您一下：美国护照过期 -JustAsked- ♀ (215 bytes) () 06/21/2019 postreply 08:08:34

• 你问题不清楚。 -柠檬椰子汁- ♂ (445 bytes) () 06/21/2019 postreply 09:06:00

• 谢谢。您的回答很清楚，非常感谢。 -JustAsked- ♀ (280 bytes) () 06/21/2019 postreply 11:42:02

• 三天有效期还让进，这么通融的边防也很少见。 -柠檬椰子汁- ♂ (0 bytes) () 06/21/2019 postreply 11:50:08

• 加拿大海关是最有人性的海关 -JustAsked- ♀ (95 bytes) () 06/21/2019 postreply 12:12:10

• 美加是6month club的，所以他可以进入加拿大但只能待三天就是护照失效为止。 -寻欢留香- ♂ (0 bytes) () 06/22/2019 postreply 13:27:11

• 人在加拿大，美国护照过期，是出加拿大境时有麻烦还是入美国境有麻烦？又或者是两者都要麻烦？ -原上草2017- ♂ (0 bytes) () 06/23/2019 postreply 12:52:05