California codified bedbug rules in 2017 (Civil Code §1954.600 et seq.). The framework is short, specific, and consistently misread by landlords trying to push treatment costs onto the tenant. Three rules carry most of the weight.
Three rules: §1954.603 requires written bedbug disclosure to every new tenant before lease signing; §1954.601 prohibits renting a unit the landlord knows has a current infestation; treatment cost falls on the landlord absent clean evidence the tenant brought them in. Tenant has obligations too: prompt written reporting and cooperation with inspection.
Every new tenant has to receive written bedbug information before the lease is executed. The disclosure has to cover:
Get a signed acknowledgement at lease signing. Save it to the unit file.
Civil Code §1954.601 prohibits a landlord from showing, renting, or offering for rent a unit the landlord knows is currently infested. The duty is triggered by knowledge — tenant reports, neighbor reports, prior pest control records all count. The unit has to be treated, verified clear by a licensed PCO, and the verification documented before re-renting.
Bedbugs are a habitability issue once reported. The landlord retains a licensed pest control operator, treats at landlord expense, and works through any related issues (mattress disposal, follow-up treatment, adjacent-unit inspection). Trying to charge the tenant requires clean evidence the tenant introduced the bedbugs — a forensic question PCOs can rarely answer with confidence, and a finding California small claims courts rarely make.
Bedbugs travel between adjacent units. Standard professional practice is to inspect adjacent units after a confirmed infestation, and to disclose the inspection to the tenants of those units. Each entry needs its own §1954 notice. Don't skip the notice step under time pressure — an entry violation stacks on top of any habitability issue and changes the trial dynamics.
Yes. §1954.603 requires written bedbug information to every new tenant before lease signing.
No. §1954.601 prohibits showing or renting a unit the landlord knows is infested. Must be treated and verified clear first.
The landlord, in almost every case. Charging the tenant requires evidence the tenant brought them in — rarely met.
Inspect within a reasonable time after a tenant report; notify the tenant of findings within 2 business days under §1954.605. Active infestations trigger standard urgent-habitability timelines.
Free review of the disclosure file, the inspection workflow, and the treatment-cost allocation for your specific facts.
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