Q: I was recently offered voluntary early retirement from the U.S. Postal Service. I have 30 1/2 years of credible service, I am under the Federal Employees Retirement System, and I am 51 years old. I am also considered a reduction-in-force employee because our district office has been closed. Do I qualify for the special retirement supplement? A: You would be eligible for the special retirement supplement when you reach your minimum retirement age, which is 56.