Rentry permit: e-file or certified mail?

[thethinker]

For send a Rentry permit is better e-file in the website USCIS.gov or send an envelope with certified mail?

If i want leave a week after send rentry permit Which is better of them?

Thanks

 

[ginnu]

For send a Rentry permit is better e-file in the website USCIS.gov or send an envelope with certified mail?

If i want leave a week after send rentry permit Which is better of them?

Thanks

I will send by certified mail so that officers has every paper, photographs,fee check before him.(keep copy of form for your records)