Chip,
I too am retired and 100% VA disabled.
This is the last post I will make on this subject as I am not trying to change the thread. Each branch of service has its own regulations with regard to the wearing of uniforms by retirees. Retirees that are entitled to pay are subject to the UCMJ.
I am not trying to go off topic here but this is an important issue and here are the references:
Army Regulation 670-1 prescribes uniform wear by Army veterans and retirees:
Retirees. Paragraph 30-3 of the above listed regulation gives full details. Army retirees may wear the Army uniform only for the following circumstances:
(1) Personnel performing instructor duties at an educational institution conducting courses of instruction approved by the Armed Forces (such as JROTC).
(2) While attending military funerals, memorial services, weddings, inaugurals, and other occasions of ceremony.
(3) 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.
For (2) and (3), above, only service and dress uniforms may be worn; the BDU and physical fitness uniforms will not be worn.
Wear of the Army uniform at any other time, or for any other purpose than stated above is prohibited.
Retirees are authorized to wear the physical fitness uniform (PFU) or the improved physical fitness uniform (IPFU) under the following provisions:
(1) May wear the PFU or the IPFU with civilian attire off the installation.
(2) When wearing the PFU or the IPFU as a complete uniform, retirees will:
(a) Wear only authorized accessories corresponding to those worn by personnel of the Active Army.
(b) Keep the sleeves down on the sweatshirt or jacket, the legs down on the pants, and the t-shirt tucked inside the trunks.
(c) Not roll or push up the sleeves of the IPFU sweatshirt or the PFU/IPFU jacket.
(d) Wear the sleeves of the IPFU sweatshirt cuffed or uncuffed; may not cuff the IPFU jacket sleeves.
(e) Wear the black knit cap pulled down snugly on the head, with the bottom edge of the cap folded up; will not roll the edge of the cap. A similar, commercially designed black knit cap is authorized for wear.
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.
Army Medal of Honor Recipients. Personnel awarded the Medal of Honor may wear the Army uniform at their pleasure, except:
(1) In connection with the furtherance of any political or commercial interests, or when engaged in off-duty civilian employment.
(2) When participating in public speeches, interviews, picket lines, marches, rallies, or public demonstrations, except as authorized by competent authority.
(3) When attending any meeting or event that is a function of, or is sponsored by, an extremist organization.
(4) When wearing the uniform would bring discredit upon the Army.
(5) When specifically prohibited by Army regulations.
Note: Any individual wearing a US Military uniform is expected to reflect the high personal appearance standards and esprit de corps that the US Military in uniform represent. To this end, particular attention will be paid not only to the correct and military wear of uniform components, but also to the individual’s personal and physical appearance. All personnel exercising the privilege of wearing a US Military service or dress uniform will comply fully with their service's grooming and weight control standards.
Uniform Code of Military Justice (UCMJ)
ART. 2. PERSONS SUBJECT TO THIS CHAPTER
(a) The following persons are subject to this chapter:
• (1) Members of a regular component of the armed forces, including those awaiting discharge after expiration of their terms of enlistment; volunteers from the time of their muster or acceptance into the armed forces; inductees from the time of their actual induction into the armed forces; and other persons lawfully called or ordered into, or to duty in or for training in the armed forces, from the dates when they are required by the terms of the call or order to obey it.
• (2) Cadets, aviation cadets, and midshipman.
• (3) Members of a reserve component while on inactive-duty training, but in the case of members of the Army National Guard of the United States or the Air National Guard of the United States only when in Federal Service.
• (4) Retired members of a regular component of the armed forces who are entitled to pay.
• (5) Retired members of a reserve component who are receiving hospitalization from an armed force.
• (6) Members of the Fleet Reserve and Fleet Marine Corps Reserve.
• (7) Persons in custody of the armed forces serving a sentence imposed by a court-martial.
• (

Members of the National Oceanic and Atmospheric Administration, Public Health Service, and other organizations, when assigned to and serving with the armed forces.
• (9) Prisoners of war in custody of the armed forces.
• (10) In time of war, persons serving with or accompanying an armed force in the field. (IMPORTANT NOTE: EFFECTIVE JANUARY 1, 2007, CONGRESS CHANGED THIS PROVISION TO READ: "In time of declared war or a contigency operation, persons serving with or accompanying an armed force in the field."
• (11) Subject to any treaty or agreement which the United States is or may be a party to any accepted rule of international law, persons serving with, employed by, or accompanying the armed forces outside the United States and outside the Canal Zone, the Commonwealth of Puerto Rico, Guam, and the Virgin Islands.
• (12) Subject to any treaty or agreement which the United States is or may be a party to any accepted rule of international law, persons within an area leased by or otherwise reserved or acquired for use of the United States which is under the control of the Secretary concerned and which is outside the United States and outside the Canal Zone, the Commonwealth of Puerto Rico, Guam, and the Virgin Islands.
(b) The voluntary enlistment of any person who has the capacity to understand the significance of enlisting in the armed forces shall be valid for purposes of jurisdiction under subsection (a) and change of status from civilian to member of the armed forces shall be effective upon the taking of the oath of enlistment.
(c) Notwithstanding any other provision of law, a person serving with an armed force who--
• (1) Submitted voluntarily to military authority;
• (2) met the mental competence and minimum age qualifications of sections 504 and 505 of this title at the time of voluntary submissions to military authority:
• (3) received military pay or allowances; and
• (4) performed military duties: is subject to this chapter until such person's active service has been terminated in accordance with law or regulations promulgated by the Secretary concerned.
(d)
• (1) A member of a reserve component who is not on active duty and who is made the subject of proceedings under section 815 ( article 15) or section 830 ( article 30) with respect to an offense against this chapter may be ordered to active duty involuntary for the purpose of--
◦ (A) investigation under section 832 of this title ( article 32)
(

trial by court-martial; or
(C) non judicial punishment under section 815 of this title ( article 15).
• (2) A member of a reserve component may not be ordered to active duty under paragraph (1) except with respect to an offense committed while the member was
◦ (A) on active duty; or
(

on inactive-duty training, but in the case of members of the Army National Guard of the United States or the Air National Guard of the United States only when in Federal service.
• (3) Authority to order a member to active duty under paragraph (1) shall be exercised under regulations prescribed by the President.
(4) A member may be ordered to active duty under paragraph (1) only by a person empowered to convene general courts-martial in a regular component of the armed forces.
(5) A member ordered to active duty under paragraph (1), unless the order to active duty was approved by the Secretary concerned, may not--
◦ (A) be sentenced to confinement; or
(

be required to serve a punishment of any restriction on liberty during a period other than a period of inactive-duty training or active duty (other than active duty ordered under paragraph (1)).