Here’s more detail:
Imposed by a District Court, with a defined term of years. A judge could extend the decree, If the court found noncompliance by the Republican National Committee. (RNC)
I must stress this had a chilling effect on any effort by the Republicans beyond the RNC to combat election fraud, since the Democrats would try to get extensions by any means possible.
A Consent Decree is an agreement between the parties, to end litigation.