I’m sorry I must disagree.
(a) Members of the Armed Forces (including retired members and members of reserve components). The wearing of the uniform is prohibited under any of the following circumstances:
(3) Except when authorized by competent Service authority, when participating in activities such as public speeches, interviews, picket lines, marches, rallies or any public demonstrations (including those pertaining to civil rights), which may imply Service Sanction of the cause for which the demonstration or activity is conducted
b) Former members of the Armed Forces.
(1) Unless qualified under another provision of this part or under the provisions of 10 U.S.C. 772, former members who served honorably during a declared or undeclared war and whose most recent service was terminated under honorable conditions may wear the uniform in the highest grade held during such war service only upon the following occasions and in the course of travel incidents thereto:
(i) Military funerals, memorial services, weddings, and inaugurals.
(ii) Parades on national or State holidays; or other parades or ceremonies of a patriotic character in which any active or reserve U.S. military unit is taking part.
(2) Wearing of the uniform or any part thereof at any other time or for any other purpose is prohibited.
“Except when authorized by comopetent service authority” The reading of the individual service regs allow it.
The Army regulation for veterans reads as follows:
Army Veterans. Instructions are listed in paragraph 30-4 of Army Regulation 670-1.
Former members of the Army may wear the uniform if they served honorably during a declared or undeclared war, and if their most recent service was terminated under honorable conditions (that means an honorable or general discharge). Personnel who qualify under these conditions will wear the Army uniform in the highest grade they held during such war service.
The uniform is authorized for wear only for the following ceremonial occasions, and when traveling to and from the ceremony or function. Uniforms for these occasions are restricted to service and dress uniforms; the BDU and physical fitness uniforms will not be worn.
(1) When attending military funerals, memorial services, weddings, inaugurals, and other occasions of ceremony.
(2) When attending parades on national or state holidays, or other patriotic parades or ceremonies in which any active or reserve United States military unit is taking part.
Former Soldiers who are discharged honorably or under honorable conditions from the Army (even if it’s not during wartime service) may wear their uniform while going from the place of discharge to their home of record, within three months after discharge.
Wear of the Army uniform at any other time, or for any other purpose than stated above, is prohibited.