(Bloomberg Politics) -- The California Senate voted Tuesday toallow undocumented workers living in the state to obtainmedical insurance through its Obamacare health exchange.

Senate Bill 4 also would allow those in the country illegallywho are 18 years of age or younger and reside in California toenroll in Medi-Cal, the state's insurance program for the poor, theSacramento Bee reported. In order to obtain coverage underthe Affordable Care Act, the state would need to file a federalwaver, and those immigrants who applied would not be eligible forfederal subsidies.

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"Ensuring that every child in California grows up healthy andwith an opportunity to thrive and succeed is simply the right thingto do,” Democratic Senator Ricardo Lara, who authored the bill,told the Bee.

The measure, which passed by a 28-11 margin in the Senate, nowheads to the state assembly. Citing concern over the cost ofexpanding coverage for undocumented immigrants, Governor JerryBrown has not said whether he will sign the bill.

The fate of the measure is dependent on available funding,and will require that legislators vote to add money to the budgetto pay for it. The senate's own analysis found that extendingMedi-Cal benefits to 786,600 immigrants would cost the state $690million annually, and while those who obtained health insurancethrough the Covered California exchange would pay for their owninsurance coverage, there would be further costsinvolved.

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"If 20% of undocumented immigrants who are not income eligiblefor Medi-Cal enroll through Covered California, the administrativecosts and fees collected to pay those costs would be about $25million per year," a report by the Senate HealthCommittee concluded.

"If this bill were to be signed into law, it would only serve toexacerbate the problem and not fix it,” RepublicanSenator Jeff Stone told the Bee. “This bill would onlyadd hundreds of thousands of more patients to the roll with no oneto care for them.”

President Obama's executive orders on immigration, which arecurrently being held up in the courts, did not extend medicalcoverage under the Affordable Care Act to undocumentedworkers.

—Michael Marois contributed to this article.

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