Is it mandatory to have 6 months of valid passport while entering US?

[trt221gnov14]

I have valid VISA for 2 years and planning to travel outside US in a month. By the time I return, my passport will be valid only 4 more months. Is it mandatory to have 6 months of valid passport while entering US?  If so, is this applicable for US or any country (other than home country)?

[jairichi]

You can enter US with your current valid passport. But, your I94 will be issued based on passport expiry. Better to get your passport renewed before your travel.

[Goluram]

As Jairichi mentioned, you can travel with this passport but the I-94 validity will have the dates matching to your passport expiration date.

 

If you travel often, then you may renew your passport in US after your return and take a quick trip across border (Canada, Mexico) to get an updated I-94.