(a) Insurers must file any new rates or revisions to previously filed rates governed by Insurance Code Chapter 2053, concerning Rates for Workers' Compensation Insurance, at least 30 days before they become effective. The insurer must file any supplementary rating information not prescribed under Insurance Code Article 5.96, concerning Promulgated Lines.
(b) For rates governed by Insurance Code Chapter 2251, concerning Rates, insurers must file any new rates, rating manuals, rules, all other supplementary rating information, and fees, or revisions to these items and all other information required by this section. An insurer may use the information filed under this division on and after the date of the filing, unless the insurer is subject to prior approval under Insurance Code Chapter 2251, Subchapter D, concerning Prior Approval of Rates Under Certain Circumstances.
(c) Insurers must file any new rates and supplementary rating information or revisions to previously filed rates and supplementary rating information governed by Insurance Code Chapter 3502, concerning Mortgage Guaranty Insurance, at least 15 days before they become effective.
(d) All rate and rule filings must be submitted for only one line of insurance except for multi-peril and interline filings.
(e) Each filing must include the transmittal information required in §5.9310 of this title (relating to Property and Casualty Transmittal Information and General Filing Requirements).
(f) Insurers must inform TDI of a change in the effective date of a rate and rule filing on or before the effective date in the filing.
(g) Each filing must include a filing memorandum that explains the purpose of the filing and provides all material background details relating to the filing, including a statement on the overall impact of the filing. The filing memorandum must briefly describe each change to the rates, rating manuals, rules, any other supplementary rating information and fees used by the insurer, and briefly describe the supporting information provided for each change. A brief summary of any related policy form or endorsement filings, including the coverages, limitations, and exclusions, must be included.
(h) Except as provided in Division 9 of this subchapter (relating to Filings Made Easy - Reduced Filing Requirements for Certain Insurers), or subsection (j) of this section, each filing must include supporting information. Sufficient supporting information is necessary for TDI to establish that a filing produces rates that are not excessive, inadequate, unreasonable, or unfairly discriminatory for the risks to which they apply. Insurers must provide sufficient documentation to justify specific rates or revisions they are proposing. To the extent the information originally submitted in a rate and rule filing is insufficient, TDI may request additional information as deemed necessary by TDI or the Commissioner. Each filing must contain the following items:
  (1) a completed rate filing checklist;
  (2) rate change information;
  (3) SERFF rate data;
  (4) loss cost information, if the filing references an advisory organization loss cost filing;
  (5) an actuarial memorandum;
  (6) actuarial support appropriate to the rating information being filed, as specified in subparagraphs (A) - (C) of this paragraph:
    (A) All filings that propose changes to relativities, such as territory or class, and those implied by discounts, surcharges, or tiers, must include relativity analyses. This requirement applies when the proposed rate changes vary across a characteristic, regardless of presentation. The related territory codes and descriptions, classification systems and descriptions, or rules must also be included.
    (B) All except the following filings must include rate indications:
      (i) filings for new rates that will not replace, modify, or supersede any existing rates, unless the rates are derived from the experience of an affiliate, including an eligible surplus lines insurer;
      (ii) fee filings; or
      (iii) filings containing changes only to supplementary rating information with no overall rate impact. Examples include filings with no overall rate impact that contain only items such as relativity changes or rates for endorsements.
    (C) Filings must include other actuarial support when neither the relativity analysis in subparagraph (A) of this paragraph nor the rate indications in subparagraph (B) of this paragraph apply;
  (7) policyholder impact information for owner-occupied homeowner and personal automobile filings that include changes that will result in a difference between the minimum and maximum policyholder impact that is greater than 5%;
  (8) the average rate change by county for owner-occupied homeowners rate filings;
  (9) historical premium and loss information, if the filing changes or replaces existing rates;
  (10) expense information;
  (11) profit provision information;
  (12) third-party data information; and
  (13) third-party model information.
(i) Filings submitted by advisory organizations do not need to include:
  (1) the proposed effective date as specified in §5.9310(c)(9) of this title;
  (2) the written premium and policyholder information in the SERFF rate data as specified in subsection (h)(3) of this section;
  (3) policyholder impact information as specified in subsection (h)(7) of this section;
  (4) historical premium and loss information as specified in subsection (h)(9) of this section;
  (5) expense information as specified in subsection (h)(10) of this section; or
  (6) profit provision information as specified in subsection (h)(11) of this section.
(j) Instead of the items in subsection (h) of this section, short track filings must include:
  (1) a completed rate filing checklist;
  (2) rate change information;
  (3) SERFF rate data; and
  (4) a side-by-side comparison or a mark-up, if applicable.
(k) Each filing submitted must be legible, accurate, internally consistent, complete, and contain all required documents. In each filing:
  (1) each table must be clearly labeled, including titles and column and row headings to clearly identify the contents;
  (2) row and column headings must be repeated on each page of tables displayed on multiple pages;
  (3) all pages must print to at least 10-point type in black ink, unless the pages are a mark-up;
  (4) text shading, other than yellow highlighting, may not be used; and
  (5) each page should include a page number or other unique identifier.
(l) Paragraphs (1) - (3) of this subsection address public information.
  (1) If an insurer believes a portion of the information required to be filed under Insurance Code Chapter 2053 or Chapter 2251 is confidential and excepted from disclosure under Government Code Chapter 552, concerning Public Information, the insurer must mark each page excepted.
  (2) For filings submitted under Insurance Code Chapters 2053 or 2251 that include information that is marked confidential, TDI will request an attorney general decision under Government Code Chapter 552 before making the information open for public inspection. TDI does not consider the following excepted from disclosure under Government Code Chapter 552: loss cost multipliers, rates, rating factors and relativities, rating manuals, fees, or summary information about the filing, including date filed, rate impact, effective dates, or a summary of the changes. TDI does not consider the following categories of supporting information excepted from disclosure under Government Code Chapter 552: rate change information, SERFF rate data, average rate change by county, sample premium impacts by selected ZIP codes, historical premium and loss information, or historical expense information.
  (3) Each filing submitted under Insurance Code Chapter 3502, including any supporting information filed, will be open for public inspection as of the date of the filing.
(m) The insurer is responsible for ensuring that its filing complies with Texas statutes and rules.
(n) TDI maintains the Filings Made Easy Guide to help insurers comply with Texas statutes and rules. Insurers may refer to the Filings Made Easy Guide for rate filing templates or exhibits that insurers can use to display necessary supporting information required in subsection (h) of this section. Insurers may obtain this guide from TDI's website at www.tdi.texas.gov.
(o) Filings under this division may not be combined with any other filing types submitted under this subchapter.

Source Note: The provisions of this §5.9334 adopted to be effective November 16, 2014, 39 TexReg 8694; amended to be effective July 28, 2019, 44 TexReg 3640; amended to be effective January 8, 2024, 49 TexReg 41