The Indiana emissions testing program has set hours for your to bring your vehicle in to get an emissions inspection done.  Emissions inspections are free and last on average about ten minutes.  The locations in Indiana to get your emissions tested can be found here.

The testing hours are as follows:

Monday, Wednesday, and Friday from 8:00 a.m. until 5:00 p.m.

Tuesday and Thursday from 8:00 a.m. until 7:00 p.m.

Saturday from 8:00 a.m. until 1:00 p.m.

State run emissions testing locations are usually closed on all federal and state holidays.  It is recommended you call ahead to verify that the emissions testing location you plan on attending will be open.