The law is simple: Disputes involving whether an insurance carrier in a no-fault coverage dispute is primary, secondary, or tertiary must be resolved through intercompany arbitration. This fact pattern was presented four years ago in SZ Medical, P.C. v. Lancer Ins. Co., 7 Misc.3d 86 (App. Term 2d Dept. 2005) and was again presented in M.N. Dental Diagnostics, P.C. v Government Employees Ins. Co., 2009 NY Slip Op 29266(App. Term 1st Dept. 2009).