Here's the reg for SMV emblems in KY.
189.830 Use of emblem or reflective tape restricted -- Exemption from requirement.
(1) The slow-moving vehicle emblem shall be restricted to the uses specified herein and the use on any other type of vehicle or on other objects is prohibited.
(2) The slow-moving vehicle emblem shall not be required on trailers or other drawn vehicles which do not obstruct the slow-moving vehicle emblem required on the towing vehicle.
(3) Highway construction or maintenance vehicles and public utility vehicles shall not require slow-moving vehicle emblems when being guarded by flagmen or flares.
(4) The use of slow-moving vehicle emblems or alternative reflective tape, as required under KRS 189.820, shall be in addition to any other reflective or lighting devices required by law.
(5) The slow-moving vehicle emblem shall not be used on a bicycle. Effective:April 11, 2012
History: Amended 2012 Ky. Acts ch. 53, sec. 3, effective April 11, 2012. -- Amended 1974 Ky. Acts ch.b101, sec.b6. -- Created 1970 Ky. Acts ch.b45, sec.b3.