In addition to the requirements of Sec. 634.19(a) of this subchapter, motor vehicles which are owned and/or operated by a person who resides, performs duty, is employed on, or ``frequently uses'' the facilities of Hunter Army Airfield will be registered in accordance with the requirements of Sec. 634.20 of this subchapter. Frequent users include but are not limited to family members, retirees, and civilians whose normal route of travel between home and work takes them through the installation.