As head of the executive branch, the president must appoint the top officials for all of the federal agencies. These positions are listed in the Plum Book which outlines more than 7,000 appointive positions in the government.
1 When you have a Ph.D., sign your name either as Dr. Ernest Smith or Ernest Smith, Ph.D. 2  If you have a Ph.D. you should engrave all your personal envelopes or labels with either Dr. Ernest Smith or Ernest Smith, Ph.D.his is the teaching of St. Thomas Aquinas in his Treatise on Justice. (Question 58). Therefore, one should address a person with a doctorate by his title, and the person should have no fear in calling himself or herself by that name.
If your have a PHD this confers the title Dr. Which you should not put on your email or business cards (either as Dr or PHD and most definitely not both!). In academia the title is redundant, in industry the title makes you pompous.hough when it is used it should be Dr John Smith, not Dr John Smith PhD. So if you are working as an academic of course it can be on your business cards. I do not use my title outside academia, but I do have it on my bank card.