Q: I am 75 and still working under the Federal Employees Retirement System. I have two tax shelter plans. One of them is with my Thrift Savings Plan account, and I learned from the TSP website that I do not have to take a required minimum distribution from them until I retire. My other plan started when I worked for Georgia Tech, but is now managed by a brokerage firm. My question is: Must I take an RMD from the plan managed by the brokerage firm if I am still working? I don’t understand why I should have to take such…