Cal. Rev. & Tax. Code § 19548.8
(a)
(2) Individual income tax return information that may be disclosed to the California Health Benefit Exchange pursuant to this section is limited to the following information from the individual income tax return of a taxpayer who fails to report minimum essential coverage, as required by Section 100705 of the Government Code, or fails to reconcile the advanced premium assistance subsidy, as required by Section 100810 of the Government Code: