House passes major health reform billMar 21, 2010Labels: U S, Patient ProtectionHouse ClerkBritannica
Reconciliation law amends and finalizes ACA packageMar 30, 2010Labels: Reconciliation Act, Barack ObamaBritannicaGPO
Temporary preexisting-condition plan begins (PCIP)Jul 1, 2010Labels: PCIP, Pre-Existing ConditionCMSKFF
First wave of insurance protections take effectSep 23, 2010Labels: Insurance Protections, Young AdultsCMSPBS
Supreme Court upholds ACA, limits Medicaid expansionJun 28, 2012Labels: Supreme Court, NFIB vOyezHollandKnight
Marketplace open enrollment begins on HealthCare.govOct 1, 2013Labels: HealthCare gov, Open EnrollmentWhite HouseCMS
Major coverage expansions and market rules startJan 1, 2014Labels: Medicaid Expansion, Premium TaxKFFNAIC
First marketplace open enrollment endsMar 31, 2014Labels: Open Enrollment, MarketplacesWhite HouseCMS
Supreme Court preserves subsidies in federal marketplacesJun 25, 2015Labels: King v, Supreme CourtJustia
Coverage gains and ACA systems in place by end of 2016Dec 31, 2016Labels: ACA Implementation, Medicaid ExpansionHHSBritannica