Reg.

French to English Law/Patents Law (general) abbreviation

Hi all -

I am translating a series of documents concerning a case before the Superior Court of Quebec.

After the section identifying the plaintiff, the defendant and their respective legal counsels there follows:
NATURE DE LA CAUSE Reg: en modification de l'entier
GREFFIER [the name of the Court Clerk]
INTERPRÈTE [the name of the Court Clerk], etc.

It is what follows the entry NATURE DE LA CAUSE that I am asking about.
I am not sure what Reg: in this context refers to.

See screen cap.

Thanks for any help!
Michael