Hosting platforms operating in unincorporated Los Angeles County must display the County permit number on every listing, verify validity, and remove unpermitted listings on County notice under Title 22.140.290 and California SB-60 / AB-1731 platform rules.
Title 22.140.290(F) requires every short-term rental listing in unincorporated LA County to display the host's permit number on the booking page. California SB-60 and AB-1731 layer additional statewide platform duties: hosting platforms must verify permit numbers, collect and remit Transient Occupancy Tax where authorized, and respond to local-government takedown requests within ten business days. The County issues a quarterly list of revoked or unpermitted addresses; platforms that continue to display those listings face civil penalties up to 5,000 dollars per listing per day. Airbnb, Vrbo, and similar operators have signed pass-through agreements with the County Treasurer Tax Collector to remit TOT directly. Contract cities have separate platform agreements.
Platforms displaying listings without County permit numbers, ignoring takedown requests, or failing to remit Transient Occupancy Tax face civil penalties up to 5,000 dollars per listing per day plus state enforcement under SB-60.
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Side-by-side rule comparisons with other cities in Los Angeles County.
See how other cities in Los Angeles County handle host platform liability.
See how Castaic's host platform liability rules stack up against other locations.
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