Exit Stamp when traveling on AP

[GC_4_life]

Hello,

I am aware that people travelling on F, H, and B visa need to register at the airport and get an exit stamp but do we need to get the stamp when we are travelling on AP. When I was leaving Atlanta airport I was told that I don't need to get the exit stamp as I would be returning on AP. Can anybody confirm that and if we do need a stamp then what should I tell the immigration officer when I return?

Thank you

 

[Robert8]

would you give a link regarding the stamp at exit.

when would you encounter a immigration official while leaving?

thanks