A California Sample Letter to Landlord to Report Violation of Implied Warranty of Habitability is a document used by tenants to notify their landlords of any potential violations of the implied warranty of habitability in California. This warranty states that landlords must provide tenants with a safe and habitable living environment. Common violations include a lack of running water or electricity, a lack of heat or air conditioning, or infestations of pests. There are two types of California Sample Letter to Landlord to Report Violation of Implied Warranty of Habitability: A Formal Letter and an Informal Letter. A Formal Letter is typically used when the tenant has already attempted to communicate with the landlord and the landlord has failed to take corrective action. This document should include the tenant’s name, address, and contact information; the date the letter is being sent; a description of the violation; and a demand that the landlord take corrective action within a certain time frame. An Informal Letter is typically used to report a violation before the tenant has taken steps to communicate with the landlord. This document should include the tenant’s name, address, and contact information; the date the letter is being sent; and a description of the violation.