III. Annuity Supplement
The special retirement supplement is paid in addition
to gross monthly Federal Employees Retirement
System (FERS) annuity benefits. It represents what
you would receive for your FERS civilian service
from the Social Security Administration (SSA) and
is calculated as if you were eligible to receive SSA
benefits on the day you retired. Eligibility for the
annuity supplement continues until the earlier of
(1) the last day of the month before the first month
for which you would be entitled to actual Social
Security benefits or (2) the last day of the month in
which you reach age 62. It's in section 3.