For an "immediate" retirement annuity (which starts one full calendar month after retirement), or a "deferred" annuity (which starts at age 62 or after), the majority of employees must meet one of four combinations of age and service: | For an "immediate" retirement annuity (which starts one full calendar month after retirement), or a "deferred" annuity (which starts at age 62 or after), the majority of employees must meet one of four combinations of age and service: |