<Li> Dependents, mostly children, will be permitted to remain on their parents' insurance plan until their 26th birthday, and regulations implemented under the ACA include dependents that no longer live with their parents, are not a dependent on a parent's tax return, are no longer a student, or are married . </Li> <Li> Insurers are prohibited from excluding pre-existing medical conditions (except in grandfathered individual health insurance plans) for children under the age of 19 . </Li> <Li> All new insurance plans must cover preventive care and medical screenings rated Level A or B by the U.S. Preventive Services Task Force . Insurers are prohibited from charging co-payments, co-insurance, or deductibles for these services . </Li> <Li> Individuals affected by the Medicare Part D coverage gap will receive a $250 rebate, and 50% of the gap will be eliminated in 2011 . The gap will be eliminated by 2020 . </Li>

What are the key provisions of the affordable care act