Military Dopers: which civilians (if any) must you salute?

Related Snopes link regarding Marine salutes to Bill Clinton.

From Army Regulation 600-25: Salutes, Honore, and Visits of Courtesy:

No mention of Congressmen, Senators or anything like that.

Bear in mind that all this is largely academic. Soldiers don’t often meet salute-worthy civilians on a day-to-day basis, and when they do, the meeting is usually preceded by some intense drilling by a sergeant-major type who will tell you exactly who, how and when you salute, and who will have serious words with you afterwards if you deviate from his instructions by even a fraction of an arm-swing.

That’s how I learned it, no VP only POTUS.

Jim