Washington state is on a fast-track to providing discounted insurance for thousands of uninsured people by January 2014.
The Supreme Court has upheld the individual insurance requirement at the heart of President Barack Obama's health care overhaul.
The court on Thursday handed Obama a campaign-season victory in rejecting arguments that Congress went too far in requiring most Americans to have health insurance or pay a penalty.
The court found problems with the law's expansion of Medicaid. But even there, it said the expansion could proceed as long as the federal government does not threaten to withhold the entire Medicaid allotment to states if they don't take part in the extension.
The court's four liberal justices, Stephen Bryer, Ruth Bader Ginsburg, Elena Kagan and Sonia Sotomayor, joined Roberts in the outcome.
“We are in a very good position, because we have already received the federal funds to not only build our health-care exchange, or marketplace, but to operate it for the first year,” says State Sen. Karen Keiser (D), Kent, who chairs a key senate health committee.