Ind. Code § 9-19-14-5.5
(a) Except for a:
(2) funeral escort vehicle bearing markings as described in IC 9-21-13-0.7 ;
a vehicle that is not described by sections 2 or 5 of this chapter may not display a red and white lamp or a red and blue lamp.
(b) A person who:
(2) is not authorized to display a red and white or red and blue lamp upon the vehicle;
shall immediately remove the red and white or red and blue lamp from the vehicle.
(e) Subsection (d) does not apply to a person who owns or operates a vehicle or combination of vehicles that:
(2) is equipped;
as required under regulations of the United States Department of Transportation.
As added by P.L.99-1991, SEC.2. Amended by P.L.80-2012, SEC.2; P.L.188-2015, SEC.60.