L1B有效期超过护照有效期

之前人在美国，申请了身份转换，从B1/B2转成了L1B，拿到了I129纸，有效期批到了25年年中。现在人在国内，年底要再次出境，要申请L1B面签，但护照是25年初过期。

问题来了，L1B面签给的签证有效期，是不是只能给到护照有效期了？是应该等到护照到期的前半年，再申请换发护照、签证延期吗？还是现在就应该申请换发新的护照，然后再面签L1B？能提前2年多换发护照吗？

https://travel.state.gov/content...s/about-basics.html

My old passport has already expired. My visa to travel to the United States is still valid but in my expired passport. Do I need to apply for a new visa with my new passport?
No. If your visa is still valid you can travel to the United States with your two passports, as long as the visa is valid, not damaged, and is the appropriate type of visa required for your principal purpose of travel. (Example: tourist visa, when your principal purpose of travel is tourism). Both passports (the valid and the expired one with the visa) should be from the same country. When you arrive at the U.S. port-of-entry (POE, generally an airport or land border) the Customs and Border Protection Immigration Officer will check your visa in the old passport and if s/he decides to admit you into the United States they will stamp your new passport with an admission stamp along with the annotation "VIOPP" (visa in other passport). Do not try to remove the visa from your old passport and stick it into the new valid passport. If you do so, your visa will no longer be valid.

是的，l1b最多给到你护照有效期， 你护照过期前6个月可以跟大使馆申请新的护照，然后再找律师extend你的l1b

不用担心，L1b签证最多给你两年

1. 如果年底前签证，你的L1B签证应该给不到你的护照有效期。不过签证是进美国的时候用的，在签证有效期前进美国就好了
2. 如果不换护照，入境美国的时候CBP应该只给I94到护照有效期，也就是25年初，给不到L1B的有效期。
3. 你可以用现在的护照进入美国，然后在签证有效期之前在中国使领馆换护照，用新护照+旧护照上的签证出入美国一次，来更新你的I94到L1B的有效期，也就是25年年中。优点是不用担心国内不给换护照，缺点是听说使领馆的护照没有指纹信息，出入中国海关要走人工通道（BTW：现在国内还有自助通关吗？）。当然如果你可以在中国换护照也可以换完护照再办签证，这样就不用到了美国之后再折腾一次更新I94了。