When your petition is approved you will receive an approval notice from the USCIS. Upon receipt of the notice make 3 copies of it and put the original in a safe place where it will not get lost or damaged.

The notice will indicate that your petition has been forwarded to the NVC for processing.

Mail or email 1 copy of the approval notice to your fiance.

A copy of an actual USCIS I-129 approval notice is attached for your reference.