The Brown Administration has identified three areas for lawmakers to consider.
Those include making new rules for private health insurance, regarding premiums and guaranteeing coverage.
Bills will also seek to change how people become eligible for and stay on Medi-Cal. And lawmakers will look at options for new health coverage for people earning up to 200% of the federal poverty level.
Anthony Wright is from Health Access.
WRIGHT: "Each of these bills by themselves would be historic changes at any other time, but they're important ingredients to this overall transformation and improvement of our health care system."
California Health and Human Services Secretary Diana Dooley says the special session will help the state stay on track for full implementation in 2014.
But she says the state must be careful not to make changes the federal law doesn't require.
DOOLEY: "So that we won't have a circumstance where we enact some issue related to the individual market that if that were to change on a federal level we'd have to come back and change it."