1. parent consent form不是必须的,但是“strongly recommended”; 2. parent consent form不需要公正,但是也是“highly recommended”; 3. "While CBP may not ask to see this documentation, if we do ask, and you do not have it, you may be detained until the circumstances of the child traveling without both parents can be fully assessed."
https://help.cbp.gov/app/answers/detail/a_id/1254/kw/1254/sno/1/session/L2F2LzEvdGltZS8xNDg3NjA0MDQ3L3NpZC9sRVFrYUpibg%3D%3D
1. parent consent form不是必须的,但是“strongly recommended”;
2. parent consent form不需要公正,但是也是“highly recommended”;
3. "While CBP may not ask to see this documentation, if we do ask, and you do not have it, you may be detained until the circumstances of the child traveling without both parents can be fully assessed."
我的理解是一般情况下不需要,但是出现比如在过关时小孩儿大哭大喊“这不是我妈妈”的情况,海关可能会把你拉一边研究研究。