This is often actually an area where toubwill find conflicting info; public info provided by the California state courts says yes, they are, in California [0], while you will find other sources, including law offices, saying they aren’t. [1]
The issue is largely that they are structured as crimes in state law, but the manner of punishment available does not make them “crimes” within the purview of federal Constitutional protections, or federal statutory consequences for conviction of state crimes (e.g., in the immigration system.)
This is often actually an area where toubwill find conflicting info; public info provided by the California state courts says yes, they are, in California [0], while you will find other sources, including law offices, saying they aren’t. [1]
The issue is largely that they are structured as crimes in state law, but the manner of punishment available does not make them “crimes” within the purview of federal Constitutional protections, or federal statutory consequences for conviction of state crimes (e.g., in the immigration system.)
[0] https://www.courts.ca.gov/documents/CIP_AboutCriminalCases.p...
[1] https://www.shouselaw.com/ca/defense/infractions/