Is there a regulation that governs the wear of Dress Blues by Veterans? AR 670-1?

I deployed during operation enduring freedom honorably. and was discharged general under honorable conditions. Is it agains regulations to wear my dress blue uniform to a probate court custody matter? I want the judge to know who they are trying to keep my child away from.

Yes

670-1 IS THE BIBLE IN THE WEAR AND APPERANCE OF THE REAL SOLDIER. I will not change anything

I am attending an AIT graduation and will be wearing the current Dress Blue uniform. Do I wear the Beret with the uniform.

670-1. But it is ambiguous on some issues. It shows wearing a beret with the uniform. Talks about wearing the service hat. I am wearing to my grandsons AIT graduation.

Don't know about other services but retired Marines may wear any uniforms as long as they comply with grooming standards.
As to non retired veterans, not permitted.

I have question as a retiree can I buy and wear the New Army dress Uniform I retired before they were issued. I use to wear the dress green uniform. I have commissioning to go to.

military regs do not apply to civilians here is the only one that matters 10 U.S. Code § 772

How does one become a Sergeant and not know the regulation covering the wearing of the uniform. Did you go to PLDC, WLC or what ever they call it now? How do you do uniform inspections if you don't know the regulation? All these brotherly love replies do not solve the underlying issue which is we are promoting soldiers to the NCO ranks that do not have basic leadership knowledge.

I've worn mine to retirement ceremonies and follow Navy equivalent regs. Even at 66 I'm still within proscribed military appearance standards in a uniform.