Section 32-6-171
Authorized; distinctive lettering.
Members of volunteer rescue squads may, upon application and subject to the provisions of this division, be issued distinctive motor vehicle license plates or tags identifying these persons with such organizations. The distinctive plates or tags so issued members of these organizations shall bear the letters "R.S." and the proper number stamped thereon.
(Acts 1977, No. 777, p. 1336, §2.)