Cal. Unemp. Ins. Code § 13028

(a) For purposes of this division (and so much of Part 10 (commencing with Section 17001) and Part 10.2 (commencing with Section 18401) of Division 2 of the Revenue and Taxation Code as relates to this division) pensions, annuities, and other deferred income, as described in Section 3405 of the Internal Revenue Code, are wages and subject to withholding under this division. Amounts withheld shall be treated as if the amounts are withheld by an employer for a payroll period and only amounts withheld shall be reported to the department pursuant to Section 1088 and Section 13021.
(b) If an individual makes an election under Section 3405(a)(2) or Section 3405(b)(2) of the Internal Revenue Code not to have tax withheld, that election shall apply to withholding under this division, unless the individual elects, with the consent of the payer, to have those payments subject to withholding under this division. If an individual has not made an election under Section 3405(a)(2) or Section 3405(b)(2) of the Internal Revenue Code, that individual may elect to exclude those payments from withholding under this division. Elections provided in this subdivision shall be made pursuant to regulations of the director.
(c) Where Section 3405 of the Internal Revenue Code provides that tables or other computational procedures shall be prescribed by the Secretary of the Treasury, for the purposes of this division, any of the following amounts may be withheld, upon election of the payer:
1. (1) An amount determined by the method prescribed under Section 13020.
2. (2) A designated dollar amount as requested by the payee.
3. (3) Ten percent of the amount of federal withholding computed pursuant to Section 3405 of the Internal Revenue Code.
(d) Where the amount of withholding computed pursuant to subdivision (c) is less than ten dollars ($10) per month, the payer shall not be required to withhold that amount.
(e) This section shall not apply to pensions, annuities, and other deferred income of payees with addresses outside this state, as shown on the most current records of the payer.
(f) The department shall, in consultation with the affected payers and payees, issue regulations to implement this section.
Those regulations shall provide for delay (but not beyond July 1, 1987) of the application of this section with respect to any payer or class of payers until that time as the payers are able to comply without undue hardship with the requirements of this section. In that case, no retroactive compliance shall be required.