4 Pa. Code § 1.593
(a) The following words and terms, when used in this subchapter, have the following meanings, unless the context clearly indicates otherwise:
(ii) A surviving spouse or permanent caregiver of a veteran if approved by the Department of General Services.
Service-disabled—A veteran who possesses either a disability rating letter issued by the United States Department of Veterans Affairs or a disability determination from the United States Department of Defense.
Small business—A business that does not exceed the limitation on revenue or number of employees established by the Department of General Services for designation as a small business.
VBE—Veteran-owned small business enterprise—A business owned and controlled by a veteran.
Veteran—A person who served on active duty in the United States Armed Forces, including the Reserve and National Guard, who was one of the following:
SDVBE—Service-disabled veteran-owned small business enterprise—A small business owned and controlled by either of the following: