Is there an authorized PT belt list, and is the old yellow and gray one not on that list?

Had to wear these in the Navy, whenever we got station on Army bases or facilities. We always thought it was dumb. Especially when I was in Kandahar, sure make it easier for snipers to see us. We know none were around, but still.

Glad I'm retired -- this or belt thing is stupid -- know where it started? While deployed to Hungary in the 90s, we had to walk in the dark from one part of the base to the other, so we're issued them for safety-- and they were worn by those running -- not in formation, but singly. Big Army decided that was something all soldiers should do, and it just grew from that. Sorry, guys.

I heard yellow was for E-4 and below, green for NCOs, and blue for officers.

It's unit SOP. Some units require safety vests like in Korea, some want pt belts. Every unit has different standards on this. Every unit I was in save for Korea gave zero shits about the color of your pt belt. It just needed to reflect.

It would seem that every post is different. At Ft. Jackson we wore orange, at Ft. Knox we wore the yellow and when I was at Ft. Hood we wore the orange vest with name and rank sewed on.

As long as I've been in the Army, I have never seen an actual Big Army list of authorized/unauthorized reflector belts. I know, for certain, that some units (from Company to BCT level) will have an SOP on what type and color is to be worn while assigned to that unit.