Three years after President Barack Obama’s landmark heath care overhaul became law, major changes to coverage are on the horizon. Starting in January, all Americans will be required to have health insurance, but the process begins for many people on October 1, when open enrollment in the insurance marketplace will start.

While we know the broad strokes of the plan, many questions remain as to how exactly it will be implemented across the country. To get an idea about how the law will affect people in Texas, we spoke to experts at the county, state and local level.

Click the logo below to see part one of our weeklong series on the Afforable Care Act, with Stephanie Goodman of the Texas Health and Human Services Commission, Dr. Mark Hernandez of Travis County’s Community Care Collaborative and Texas Academy of Family Physicians CEO Tom Banning.