Relating to the administration of, contributions to, and benefits under retirement systems for firefighters in certain municipalities.

SB 2345 amends Texas law governing retirement systems for firefighters in cities with populations between 450,000 and 500,000. The bill adds specific financial definitions to standardize how retirement fund contributions, benefits, and liabilities are calculated and administered. Key provisions include defining terms like "actuarial accrued liability" (the portion of future benefits attributed to past service) and "amortization rate" (the percentage used to pay down pension liabilities). These changes affect how cities manage firefighter retirement funds, ensuring consistent financial reporting and valuation methods. The bill focuses on procedural updates to retirement system administration, not changes to benefit levels or contribution rates.