The measure bans the practice of "lunch shaming," in which students who owe the school money for meals are denied food or given a cheaper alternative meal.
[Ads /]
Under the new law, a school can no longer give a student a cheaper alternative meal.
RELATED: California becomes first state in nation to mandate later start times at most public schools
In a statement Saturday, Gov. Gavin Newsom thanked Ryan Kyote, a third-grader at an elementary school in Napa County who brought national attention to the practice earlier this year by paying for all the food service bills of his fellow students at the school.
"I want to thank Ryan for his empathy and his courage in bringing awareness to this important issue,'' Newsom said.
RELATED: 9-year-old pays off lunch debt for his entire third grade class
The 10-year-old brought national attention to the issue when he used his allowance to pay all the food service bills of his fellow students. We spoke to Ryan and his mom about why he did that.
[Ads /]
"I saw this girl was in line and then she was going to get lunch and she got her lunch and they said, 'You have to give it back,'" he said. "And then she was sad, so she went to the bathroom and then kids starting laughing at her so she went and started crying."
Ryan worked with the governor on legislation to end "lunch shaming." The third-grader calls it an "amazing" experience and has this message for Newsom.
RELATED: Governor Newsom vetoes toll system for San Francisco's iconic Lombard Street
"It was great to meet you and thank you and I hope I can meet you again," he said.
His mom, Kylie Kirkpatrick, added, "We've been up, well I have been celebrating with everybody, everybody who's worked so hard to get this passed. So one state down, 49 to go and then we go federal."
The Associated Press contributed to this report.