Article R1617-18 of the French General Code of Local Authorities
Regies may be set up outside national territory. These régies are subject to the rules defined in articles R. 1617-2 to R. 1617-17. However: a) The constitutive act may provide that these régies pay all expenses necessary for the proper operation of the service abroad; b) A deposit account may be opened with a credit institution corresponding to the Banque de France or, failing that, in a local banking institution….