About 90% of my focus here at ACASignups.net is on the two biggest sections of the ACA: The Individual Market (3-legged stool, exchanges, subsidies, etc.) and Medicaid expansion. I tend not to write much about Medicare, "traditional" Medicaid or the Employer-Sponsored Insurance (ESI) market, which mainly consists of the Large Group Market (companies with 50 employees or more) and the Small Group Market (companies with fewer than 50 employees). As it happens, the ESI market covers nearly half the U.S. population (roughly 155 million Americans, give or take).
Under the ACA, individual market policies have to include the following "Blue Leg" provisions to be considered ACA-compliant: