Ind. Code § 8-14-1-1
As used in this chapter:
(8) The term "vehicle registration" means the number of vehicles subject to registration under IC 9-18 (before January 1, 2017) or IC 9-18.1 (after December 31, 2016) which are registered thereunder, and, when used with respect to the state, shall mean the number of vehicles registered in the state and, when used in respect to a county, city, or town, shall mean the number of vehicles registered by owners resident in the county, city, or town.
Formerly: Acts 1941, c.168, s.1. As amended by Acts 1980, P.L.74, SEC.213; P.L.18-1990, SEC.106; P.L.2-1991, SEC.59; P.L.145-2011, SEC.2; P.L.216-2014, SEC.8; P.L.257-2017, SEC.17; P.L.185-2018, SEC.20.