Cal. Rev. & Tax. Code § 25112

(a) If a taxpayer electing to file under Section 25110 fails to supply any information described in subdivision (b), the taxpayer shall pay a penalty of one thousand dollars ($1,000) for each taxable year with respect to which the failure occurs.
(b) A taxpayer electing to file pursuant to Section 25110 shall do all of the following:
1. (1) Retain and make available to the Franchise Tax Board, upon request, the documents and information, including any questionnaires completed and submitted to the Internal Revenue Service or qualified states, that are necessary to audit issues involving attribution of income to the United States or foreign jurisdictions under Sections 482, 861, 863, 902, and 904, and Subpart F of Part III of Subchapter N, or similar sections of the Internal Revenue Code.
2. (2) Identify, upon request, principal officers or employees who have substantial knowledge of, and access to, documents and records that discuss pricing policies, profit centers, cost centers, and the methods of allocating income and expense among these centers. The information shall include the employees’ titles and addresses.
3. (3) Retain and make available, upon request, all documents and correspondence ordinarily available to a corporation included in the water’s-edge election that are submitted to, or obtained from, the Internal Revenue Service, foreign countries or their territories or possessions, and competent authority pertaining to ruling requests, rulings, settlement resolutions, and competing claims involving jurisdictional assignment and sourcing of income that affect the assignment of income to the United States. The documents shall include all ruling requests and rulings on reorganizations involving foreign incorporation of branches, all ruling requests and rulings on changing a corporation’s jurisdictional incorporation, and all documents that are ordinarily available to a corporation included in the water’s-edge election that pertain to the determination of foreign tax liability, including examination reports issued by foreign taxing administrations. If the documents have been translated, the translations shall be furnished.
4. (4) Retain and make available, upon request, information filed with the Internal Revenue Service to comply with Sections 6038, 6038A, 6038B, 6038C, and 6041 of the Internal Revenue Code.
5. (5) Upon request, prepare and make available for each corporation organized or created under the laws of the United States or a political subdivision thereof, of which 50 percent or more of its voting stock is directly or indirectly owned or controlled, the information that would be included in the forms described in paragraph (4) if those forms were required for United States corporations.
6. (6) Retain and make available, upon request, all state tax returns filed by each corporation included under subdivision (a) in each state, including the District of Columbia.
7. (7) Comply with reasonable requests for information necessary to determine or verify its net income, apportionment factors, or the geographic source of that income pursuant to the Internal Revenue Code.
8. (8) For purposes of this subdivision, information for any year shall be retained for that period of time in which the taxpayer’s income or franchise tax liability to this state may be subject to adjustment, including all periods in which additional income or franchise taxes may be assessed or during which an appeal is pending before the State Board of Equalization or a lawsuit is pending in the courts of this state or the United States with respect to California franchise or income tax.
(c) If the failure continues for more than 90 days after the date on which the Franchise Tax Board mails notice of that failure to the taxpayer, the taxpayer shall pay a penalty (in addition to the amount required under subdivision (a)) of one thousand dollars ($1,000) for each 30-day period (or fraction thereof) during which the failure continues after the expiration of the 90-day period. The increase in any penalty under this subdivision shall not exceed twenty-four thousand dollars ($24,000).
(d) If the taxpayer fails to comply substantially with any formal document request arising out of the examination of the tax treatment of any item (hereafter in this section referred to as the “examined item”) before the 90th day after the date of the mailing of the request, any court having jurisdiction of a civil proceeding in which the tax treatment of the examined item is an issue may, upon motion by the Franchise Tax Board, prohibit the introduction by the taxpayer of documentation covered by that request.
(e) For purposes of this section, the time in which information is to be furnished (and the beginning of the 90-day period after notice by the Franchise Tax Board) shall be treated as beginning not earlier than the last day on which reasonable cause existed for failure to furnish the information.
(f) This section shall not apply with respect to any requested documentation if the taxpayer establishes that the failure to provide the documentation, as requested by the Franchise Tax Board, is due to reasonable cause. For purposes of subdivision (d), the fact that a foreign jurisdiction would impose a civil or criminal penalty on the taxpayer (or any other person) for disclosing the requested documentation is not reasonable cause unless, after in-camera review of the documentation, the court finds otherwise.
(g) For purposes of this section, the term “formal document request” means any request (made after the normal request procedures have failed to produce the requested documentation) for the production of documentation that is mailed by registered or certified mail to the taxpayer at its last known address and that sets forth all of the following:
1. (1) The time and place for the production of the documentation.
2. (2) A statement of the reason the documentation previously produced (if any) is not sufficient.
3. (3) A description of the documentation being sought.
4. (4) The consequences to the taxpayer of the failure to produce the documentation described in this section.
(h) Notwithstanding any other law or rule of law, any taxpayer to whom a formal document request is mailed may begin a proceeding to quash that request not later than the 90th day after the date the request was mailed. In that proceeding, the Franchise Tax Board may seek to compel compliance with the request.
(i) The superior courts of the State of California for the Counties of Los Angeles, Sacramento, and San Diego, and for the City and County of San Francisco shall have jurisdiction to hear any proceeding brought under subdivision (h). An order denying the petition shall be deemed a final order that may be appealed.
The running of the 90-day period referred to in subdivision (c) shall be suspended during any period during which a proceeding brought under subdivision (h) is pending.
(j) For purposes of this section, “documentation” means any documentation which may be relevant or material to the tax treatment of the examined item.
(k) The Franchise Tax Board, and any court having jurisdiction over a proceeding under subdivision (g), may extend the 90-day period referred to in subdivision (b).
(l) If any corporation takes any action as provided in subdivision (h), the running of any period of limitations under Sections 19057 to 19067, inclusive (relating to the assessment and collection of tax), or under Section 19704 (relating to criminal prosecutions) with respect to that corporation shall be suspended for the period during which the proceedings under subdivision (h) and appeals thereto are pending.