Cal. Civ. Code § ATCP 134.06

ATCP 134.06 Security deposits.
(1) Check-in procedures; pre-existing damages.
(a) Before a landlord accepts a security deposit, or converts an earnest money deposit to a security deposit under s. ATCP 134.05, the landlord shall notify the tenant in writing that the tenant may do any of the following by a specified deadline date which is not less than 7 days after the start of tenancy:
1. Inspect the dwelling unit and notify the landlord of any preexisting damages or defects.
2. Request a list of physical damages or defects, if any, charged to the previous tenant’s security deposit. The landlord may require the tenant to make this request, if any, in writing.
(b) If a tenant makes a request under par. (a) 2., the landlord shall provide the tenant with a list of all physical damages or defects charged to the previous tenant’s security deposit, regardless of whether those damages or defects have been repaired. The landlord shall provide the list within 30 days after the landlord receives the request, or within 7 days after the landlord notifies the previous tenant of the security deposit deductions, whichever occurs later. The landlord may explain that some or all of the listed damages or defects have been repaired, if that is the case. The landlord need not disclose the previous tenant’s identity, or the amounts withheld from the previous tenant’s security deposit.
(2) Returning security deposits. A landlord shall deliver or mail to a tenant the full amount of any security deposit paid by the tenant, less any amounts that may be withheld under sub. (3), within 21 days after any of the following:
(a) If the tenant vacates the premises on the termination date of the rental agreement, the date on which the rental agreement terminates.
(b) If the tenant vacates the premises or is evicted before termination date of the rental agreement, the date on which the tenant’s rental agreement terminates or, if the landlord rerents the premises before the tenant’s rental agreement terminates, the date on which the new tenant’s tenancy begins.
(c) If the tenant vacates the premises or is evicted after the termination date of the rental agreement, the date on which the landlord learns that the tenant has vacated the premises or has been removed from the premises under s. 799.45 (2), Stats.
(3) Security deposit withholding; restrictions.
(a) Standard withholding provisions. When a landlord returns a security deposit to a tenant after the tenant vacates the premises, the landlord may withhold from the full amount of the security deposit only amounts reasonably necessary to pay for any of the following:
1. Except as provided in par. (c), tenant damage, waste, or neglect of the premises.
2. Unpaid rent for which the tenant is legally responsible, subject to s. 704.29, Stats.
3. Payment that the tenant owes under the rental agreement for utility service provided by the landlord but not included in the rent.
4. Payment that the tenant owes for direct utility service provided by a government-owned utility, to the extent that the landlord becomes liable for the tenant’s nonpayment.
5. Unpaid monthly municipal permit fees assessed against the tenant by a local unit of government under s. 66.0435 (3), Stats., to the extent that the landlord becomes liable for the tenant’s nonpayment.
6. Any other payment for a reason provided in a nonstandard rental provision document described in par. (b).
(b) Nonstandard rental provisions. Except as provided in par. (c), a rental agreement may include one or more nonstandard rental provisions that authorize the landlord to withhold amounts from the tenant’s security deposit for reasons not specified in par. (a) 1. to 5. Any such nonstandard rental provisions shall be provided to the tenant in a separate written document entitled “NONSTANDARD RENTAL PROVISIONS.” The landlord shall specifically identify each nonstandard rental provision with the tenant before the tenant enters into a rental agreement with the landlord. If the tenant signs his or her name, or writes his or her initials, by a nonstandard rental provision, it is rebuttably presumed that the landlord has specifically identified the nonstandard rental provision with the tenant and that the tenant has agreed to it.
(c) Normal wear and tear. This subsection does not authorize a landlord to withhold any amount from a security deposit for normal wear and tear, or for other damages or losses for which the tenant cannot reasonably be held responsible under applicable law.
(4) Security deposit withholding; statement of claims.
(a) If any portion of a security deposit is withheld by a landlord, the landlord shall, within the time period and in the manner specified under sub. (2), deliver or mail to the tenant a written statement accounting for all amounts withheld. The statement shall describe each item of physical damages or other claim made against the security deposit, and the amount withheld as reasonable compensation for each item or claim.
(b) No landlord may intentionally misrepresent or falsify any claim against a security deposit, including the cost of repairs, or withhold any portion of a security deposit pursuant to an intentionally falsified claim.
(5) Tenant failure to leave forwarding address. A landlord who has otherwise complied with this section shall not be considered in violation solely because the postal service has been unable to complete mail delivery to the person addressed. This subsection does not affect any other rights that a tenant may have under law to the return of a security deposit.