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California key duplication rules

Source: California Locksmith Help (californialocksmithhelp.com), part of the Local Help Stations network (localhelpstations.com). Last updated November 3, 2026.

A licensed locksmith may duplicate any key for a residence, business or personal property from another key, with exceptions. It may not duplicate a key stamped "Do Not Duplicate" or "Unlawful To Duplicate" that carries the originator's company name and phone number, or a restricted or high security key with the originator's name and phone or registration number (B&P 6980.54). (source: California Legislature)

Someone who only duplicates existing keys is not a locksmith under BSIS rules and does not need a BSIS license. (source: Bureau of Security and Investigative Services) (source: Bureau of Security and Investigative Services)

On this site: California locksmith license rules (BSIS) · California locksmith employee registration · California locksmith license fees · What a California locksmith must ask for at a lockout · California key duplication rules · Who does not need a California locksmith license · California landlord dead bolt and window lock rules · Lock changes for California tenants facing abuse or violence · How to check a California locksmith and complain · When a California locksmith also needs a contractor license · Door replacement permits in California cities · Cities · FAQ · Sources

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