The rules, finalized in June and set to take effect Aug. 25, included eliminating monthly special enrolment periods for some individuals, tightening income verification, standardizing open enrolment and introducing a $5 monthly premium for people automatically re-enroled in zero-premium plans. They also excluded coverage for sex-trait modification procedures and barred Deferred Action for Childhood Arrivals (DACA) recipients from marketplace coverage and subsidies.