The TiC Final Rules, applicable for plan years on or after January 1, 2022, requires group health plans to provide certain cost-sharing information to plan participants upon request, as well as to post on a public website their (1) in-network negotiated rates for covered items and services, (2) billed charges and historical allowed amounts paid to out-of-network (OON) providers, as well as (3) the negotiated rates and historical net prices for prescription drugs, in three separate machine-readable files.