Hi fountaindew, Foreign employment authorization is absolutely required while flying back to US with H1 visa. I know three of my friends not allowed to take the flight from Kathmandu for not having the authorization sticker in their passport. I also know one of my friend who was not asked for the authorization.. but I think it was the immigration officer's mistake. Unless you are bribe immigration officers (this is what I heard) they will not let you take the flight without it. They even ask for the receipt of Shram Karyalaya showing that you have paid the government tax of Rs 500. Whether it is labor job in the middle east or an engineer's job in the US, they are both considered foreign employment by the Nepalese government.. it is kind of commonsense. BTW if you have green card this is not required.. only for H1 visa holders.