Article 66
1. This Regulation shall apply only to legal proceedings instituted, to authentic instruments formally drawn up or registered and to court settlements approved or concluded on or after 10 January 2015.
2. Notwithstanding Article 80, Regulation (EC) No 44/2001 shall continue to apply to judgments given in legal proceedings instituted, to authentic instruments formally drawn up or registered and to court settlements approved or concluded before 10 January 2015 which fall within the scope of that Regulation.
G.M.K.-Z.B.M. v S.O.
For the purposes of Article 66(1) of Regulation No 1215/2012, proceedings are instituted on the date the applicant brought the action, not on the later date when the defendant lodged a statement of opposition against the resulting judgment seeking review of the case.