Gov. Gavin Newsom has vetoed a bill that aimed to make it easier for farmworkers to make a workers’ compensation claim for heat illness.

SB 1299 would have changed the burden of proof in workers’ compensation claims when a farmworker develops a heat-related injury after laboring outdoors for an employer who fails to comply with the state’s heat safety standards. Instead of the farmworker having to prove the injury occurred on the job, as is typical in workers’ compensation cases, it would have been the employer’s responsibility to prove the illness was not work-related.

Under the bill’s provisions, if an employer failed to comply with the rules, any resulting heat-related injury to an employee would be “presumed to arise out of and in the course of employment.” It would have created a “rebuttable presumption,” which is more commonly used for law enforcement officers and firefighters who develop certain injuries that could arise from the risks inherent to their jobs.

In a veto message issued Saturday, Newsom said there is “no doubt” that California farmworkers need strong protections from the risk of heat-related illness, especially as climate change drives an increase in extreme temperatures.

“However, the creation of a heat-illness presumption in the workers’ compensation system is not an effective way to accomplish this goal,” he said. Newsom said heat safety rules are currently enforced by the California Division of Occupational Safety and Health, known as Cal/OSHA, which is better equipped to enforce those worker protections.

Newsom also noted that Cal/OSHA is establishing an agricultural unit that specializes in worker protections and hazards found at agricultural worksites, and opening new district office locations in Fresno, Santa Barbara and Riverside.

“This dedicated unit will increase Cal/OSHA’s reach to farmworker communities throughout the Central Valley, where the largest number of farmworkers and their families reside,” Newsom said.

The legislation came as many farmworkers continue to labor in unsafe conditions and Cal/OSHA confronts a severe staffing shortage that is hampering its ability to enforce heat regulations for outdoor workers.

First enacted in 2005, the state’s heat illness prevention rules require employers to provide outdoor workers with fresh water, access to shade at 80 degrees and warmer, and cool-down breaks whenever a worker requests one. Employers must also maintain a heat illness prevention plan with effective training for supervisors to recognize the signs and symptoms of heat illness.

But nearly two decades after the rules were first enacted, ensuring compliance has remained challenging.

In 2009 and 2012, the United Farm Workers sued Cal/OSHA, accusing the agency of failing to enforce the regulations.

A 2022 study by the UC Merced Community and Labor Center found many farmworkers were still laboring without the protections. Of more than 1,200 workers surveyed, 43% reported their employers had not provided a heat illness prevention plan and 15% said they had not received heat illness prevention training.

The bill’s author, Sen. Dave Cortese (D-San José), previously described SB 1299 as a “creative work-around” that was “taking the tools that we do have available and trying to cobble together an approach that will hopefully spur greater compliance.”

“The employers hate the workers’ comp presumptions so much that it makes me feel like it might actually work,” Cortese previously told The Times. “The avoidance factor is so high with them that they’ll say, ‘My God, it’s actually easier for us to provide shade and water than to have to deal with a proliferation of expedited workers’ comp claims.’”

“We’re trying to take something that they view as kind of a thorn in their side and use it as a disincentive for the kind of behavior we’re seeing,” he said.

The UFW backed SB 1299.

“Despite the Governor’s veto of SB 1299, the UFW will continue to work to save farm worker lives,” UFW President Teresa Romero said in a statement Saturday.

Opponents of the bill, including the California Chamber of Commerce and the California Farm Bureau, acknowledged the importance of protecting farmworkers from heat illness, but had argued the issue should not be addressed through the workers’ compensation system.

This article is part of The Times’ equity reporting initiative, funded by the James Irvine Foundation, exploring the challenges facing low-income workers and the efforts being made to address California’s economic divide.