The legislation proposed in Sacramento on Tuesday would require all K-12 public schools to develop COVID-19 testing plans for students and staff.
Those districts would also need to provide the funding to carry it out.
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During a news conference, Sen. Richard Pan announced the bill, saying such a law is needed to ensure that schools can stay open and safe.
The legislation would also apply to pre-schools, childcare centers and afterschool programs.
The California Department of Public Health would be required to work with school districts to develop testing plans.