The purpose of this division is to specify filing requirements in addition to those in Division 4 of this subchapter (relating to Filings Made Easy--Transmittal Information and General Filing Requirements for Property and Casualty Form, Rate and Rule, Underwriting Guideline, and Credit Scoring Model Filings) and Division 6 (relating to Filings Made Easy--Requirements for Rate and Rule Filings) for:(1) a county mutual insurance company described by Insurance Code §912.056(d); and(2) an appointed managing general agent, district, or local chapter program of a county mutual insurance company described by Insurance Code §912.056(d) that manages a portion of that county mutual insurance company's business independent of all other business of that county mutual insurance company, and that is to be treated as a separate insurer for the purposes of Insurance Code Chapters 544, 2251, 2253, and 2254 as provided in Insurance Code §912.056(e).