When you join the Retirement System, you are assigned to a tier based on your date of membership. Your tier determines:
- Your eligibility for service or disability retirement benefits;
- The formula used in the calculation of your benefits;
- Death benefit coverage;
- Service crediting; and
- Whether you must contribute toward your benefits.
If you joined the Employees’ Retirement System on or after January 1, 2010, you are a Tier 5 member.