The answer is no, education is not required to work for the US Government. I use to work for the government and very few of them actually have degrees. I have a Masters Degree in Public Administration and was an outcast. Only the ones that they show on TV or with high profile jobs have educations. The rest make an acceptable salary but acquire jobs trough cronyism. They obtained their jobs through friends such as political appointees, congressmen, govenor connections, etc. If you are an immigrant it helps. Some people advance by having sex with superiors (women). This may sound bitter, sarcastic, or like a joke but I really am serious. And this is a true story.