When can an Honorably Discharged Veteran wear his/her old uniform?

I don't even have my bdu anymore all that stuff got lost in a move. I do still have my class A I know I can't ware them anymore. I was 19-20 years old and weighed about 110. Now I'm almost 40 and 135.

The uniform reg still stands in effect no matter your in or out of the service with limitations .
Please review it still to be in the right.
There are new laws now that can effect you wearing your uniform as a civilian.

Yes if wear is IAW current regs, for formal functions, veterans functions special days- ONLY!

Where can I get a class A uniform to wear to my grandsons commisioning ceremony. He asked me to pin on his Rank.
I am a Vietnam combat veteran

One thing that a lot of these discussions fail to address is that when WEARING the uniform, you go BACK in to the military. That means you will be clean shaven, mustache/beard/hair length within spec for your time period, etc. Tatoos, piercings, etc. Oh and...it also means you must salute/render honors, etc. "Good morning sir/maam," etc. No way. Not me. I'm wearing a suit with mini ribbons/badges.

For sailors, you can wear it any time, but you (a) have to wear the whole thing and (2) it has to be proper. So if I was going to wear my dress blue jumper, I'd have to have the white t-shirt, white "dixie cup" hat, neckerchief, jumper top, 13 button pants, black socks and black uniform shoes. I can't decide not to wear the hat or the neckerchief. Also, you can't mix and match. If your uniform is from the 1980's, you can't mix it with modern parts, etc. Also, you can't go back in time. I'd love to wear a 1960's/1970's "salt and pepper" uniform but it wasn't "issue" when I was in so for me to get one for wearing would be wrong unless I was a re-enactor taking part in a Navy history display. Now, having said that, a Pearl Harbor veteran wearing wrong gear is going to get nothing from me but a stiff salute and my undying respect...