Tenn. Code Ann. § 50-6-105: Relief associations or funds for benefit of employees, spouses and dependents unaffected

Nothing in this chapter shall be construed as amending or repealing any statute or municipal ordinance relating to associations or funds for the relief, pensioning, retirement or other benefit of any employees of the municipal employer, or of the surviving spouses, children or dependents of the employees of the municipal employer, or as in any manner interfering with any statute or municipal ordinance as now or hereafter established.