Brown signed a bill that would allow patients with an immediately life threatening disease to seek clinical drugs after they've exhausted other treatment options.
Another measure will require doctors to consult a statewide database before prescribing opioids to patients.
The governor also signed a bill that requires the state to develop recommendations for computer science curriculum for K-12 students.
But he vetoed a measure that would require in-person visitation at jail facilities.
About 18 counties have eliminated, plan to eliminate or have restrict in-person visitation in at least one of their jails.
The bill, introduced by Senator Holly Mitchell, would require jails that do not provide in-person visitation to do so by January 1, 2022.
Mitchell says she is deeply disappointed in the governor’s decision to veto the bill. She says she hopes Governor Brown issues a strong directive about jail visitation.
"I am certainly hoping that it's a strong directive that tells the Board of State and Community Corrections that he does not expect any additional jail construction plans to be approved or funded without in-person visitation accommodations," Mitchell says.
In his veto message, Governor Brown wrote that the bill doesn't provide adequate flexibility and creates a strict mandate. He's directing the Board of State and Community Corrections to address video only visitation.
Brown has until Friday to sign or veto the remaining bills on his desk.