On November 18, 2015, the Obama Administration published final regulations to update requirements for group health plans and health insurance issuers under the ACA, particularly with regard to the changes they can make to the terms of their plan/coverage while retaining their “grandfathered” status. The regulations also address preexisting condition exclusions, lifetime and annual dollar limits on benefits, rescissions, coverage of dependent children to age 26, internal claims and appeal and external review processes, and ACA patient protections. The regulations, issued by the Departments of Treasury, Labor, and Health and Human Services, modify previous interim final regulations published in 2010 and incorporate subsequent subregulatory guidance. The regulations are effective on January 19, 2016, and apply to group health plans and health insurance issuers beginning on the first day of the first plan year (or, in the individual market, the first day of the first policy year) beginning on or after January 1, 2017.