The California Legislature on Thursday agreed to increase how much money people can win in medical malpractice lawsuits, resolving one of the thorniest disputes in state politics by raising a cap on damages for the first time in 47 years.

Since 1975, the most money that Californians could win for pain and suffering in medical malpractice lawsuits was $250,000. Starting Jan. 1, that cap will increase to $350,000 for people who were injured and $500,000 for the relatives of people who died.

Those amounts will gradually increase over the next decade until they reach $750,000 for injured patients and $1 million for families of deceased patients. After that, the caps will increase 2% every year to keep up with inflation.

The state Assembly voted 60-0 on Thursday to send the bill to Democratic Gov. Gavin Newsom, who has said he will sign it into law.

The bill united doctors and trial attorneys, something unthinkable just a few months ago. The California Medical Association said it would keep the health care system “accessible and affordable” while the Consumer Attorneys of California said it “affirms the important principle that injured patients deserve to be fairly compensated.”

California is one of 33 states that limits how much money people can win in medical malpractice lawsuits, according to an analysis last year by the National Conference of State Legislatures. The limit only applies to things that can’t be calculated, like pain and suffering. There is no limit on types of damages that can be counted, like medical expenses and lost wages.

The cap has been one of the most hotly contested issues in California for decades. It prevented significant increases in medical malpractice insurance premiums for doctors. But trial lawyers and consumer advocates have argued the cap protected bad behavior by discouraging many patients from filing complex and costly medical malpractice lawsuits.

Advocates have tried for years to increase the caps, including a 2014 effort rejected by 66% of the vote after strong opposition from the California Medical Association.

Nick Rowley, a wealthy trial attorney who said his infant son died 14 years ago because of medical negligence, spent millions of dollars of his own money to qualify a new initiative for the state ballot this fall that would have increased the cap to about $1.2 million.

But Rowley has pledged to withdraw his proposal from the ballot after Newsom signs this bill into law — avoiding costly campaigns for both sides of the issue.

Rowley praised California Medical Association Dustin Corcoran for “working as hard as I did to figure this out” and “put an end to a 47-year-old war.”

“I’m proud to say that we’re now allies,” Rowley said.

The bill includes other changes to the process of medical malpractice lawsuits. If doctors say or write something expressing sympathy or regret about the pain and suffering of patients, that cannot be used against doctors in trials or disciplinary hearings.

Dr. Robert E. Wailes, president of the California Medical Association, said those new rules will allow generate discussions between patients and their doctors to “facilitate greater openness, trust and long term benevolence between patients and physicians.”

Rowley said he hopes California’s compromise can “set an example that others can follow.”

He said he plans to turn his attention to other states and is planning to fund ballot initiatives to raise malpractice caps in Colorado, Montana “and any other state.”

“I think that in 2024 we’re going to see more change,” Rowley said.