In the United States, the Federal Arbitration Act ("FAA") provides the rules that govern most arbitrations, and is binding on both state and federal courts. See 9 U.S.C. § 1 et seq. But the FAA is "something of an anomaly" in federal legislation as it "bestow[s] no federal jurisdiction." Hall St. Assocs., L.L.C. v. Mattel, Inc., 552 U.S. 576, 582 (2008). So motions to compel arbitration or enforcement proceedings must be brought in state courts unless there is some independent basis to assert jurisdiction (such as federal diversity jurisdiction).
Registering a child support order that was obtained in another state or even in another country is accomplished in Massachusetts by following the procedure outlined in M.G.L. c. 209D. Otherwise known as the Uniform Interstate Family Support Act ("UIFSA"), this statutory scheme allows petitioners to register and enforce child support orders here in Massachusetts even though they were obtained in another state or country.