Ind. Code § 9-19-14-5
A police vehicle, when used as an authorized emergency vehicle, must be equipped with either of the following:
(1) At least two (2) signal lamps capable of displaying a red beam and a blue beam that meet the following requirements:
(2) One (1) signal lamp that is capable of displaying a red beam and a blue beam in a manner that will make the light visible to oncoming traffic one hundred eighty (180) degrees in front of the vehicle.
[Pre-1991 Recodification Citation: 9-8-6-20(e).]
As added by P.L.2-1991, SEC.7.