Cal. Fam. Code § 17506
(a) There is in the department a California Parent Locator Service and Central Registry that shall collect and disseminate all of the following, with respect to any parent, putative parent, spouse, or former spouse:
(10)
(B) For purposes of this subdivision, “income tax return information” means all of the following regarding the taxpayer:
(b) Pursuant to a letter of agreement entered into between the Department of Child Support Services and the Department of Justice, the Department of Child Support Services shall assume responsibility for the California Parent Locator Service and Central Registry. The letter of agreement shall, at a minimum, set forth all of the following:
(d)
(3) In order to protect the privacy of utility, cable television, electronic digital pager communication, and mobile telephony service customers, a request to a public utility, cable television corporation, provider of electronic digital pager communication, or provider of mobile telephony services for customer service information pursuant to this section shall meet the following requirements:
(C) Contain at least three of the following data elements regarding the person sought:
(f)
(g)