Conditions:
Aged 18-26.
Host families and Au Pairs must sign a Host Family-Au Pair Agreements prior to the Au Pair's placement in the host family's home. This will serve as the base in solving future disputes.
The placement can take place only through authorized agencies.
The full conditions can be found on http://edocket.access.gpo.gov/cfr_2002/aprqtr/pdf/22cfr62.31.pdf