Clean Air Car Check

Crown Point - 755 N. Industrial Blvd. [map]
Gary - 3901 W. Fourth Ave. [map]
Griffith - 232 Ivanhoe Court South [map]
Hammond - 1231 Gostlin St. [map]
Hobart - 325 Sullivan St. [map]
Portage - 5777 Melton Rd. [map]
Valparaiso - 2503 Beech St. [map]

Vehicles Due for Testing in 2018
2014 2012 2010 2008 2006 2004
2002 2000 1998 1996 1994 1992
1990 1988 1986 1984 1982 1980
1978 1976        


Indiana is making steady progress toward reducing emissions of pollutants from industry, motor vehicles and other activities that contribute to the formation of ground level ozone in Lake and Porter counties.

Cars and light-duty trucks contribute 30 - 50 percent of the pollutants that cause harmful ground-level ozone and also contribute significantly to the amount of air toxics and particulate matter in the environment. The Clean Air Car Check program identifies vehicles that emit harmful pollutants and once repaired, those vehicles' performance and fuel economy are improved, as is the air we breathe. Properly maintained vehicles also result in less contamination being released into the groundwater.

Clean Air Car Check stations are open:

Tuesday - 9 a.m. to 5 p.m.
Wednesday - 9 a.m. to 5 p.m.
Thursday - 9 a.m. to 5 p.m.
Friday - 9 a.m. to 5 p.m.
Saturday - 9 a.m. to 5 p.m.
CLOSED: Sunday, Monday and State Holidays

Clean Air Car Check will be CLOSED the following State Holidays in 2018:

New Year's Day Monday, January 1
Martin Luther King, Jr. Day Monday, January 15
Good Friday Friday, March 30
Primary Election Day Tuesday, May 8
Memorial Day Monday, May 28
Independence Day Wednesday, July 4
Labor Day Monday, September 3
Columbus Day Monday, October 8
General Election Day Tuesday, November 6
Veteran's Day Monday, November 12
Thanksgiving Thursday, November 22 and Friday, November 23
Christmas Monday, December 24, Tuesday, December 25


Avoid the Rush!

Vehicles can be inspected beginning in October of the year before they are due to be tested. There is no need to wait for a notice to arrive in the mail, just bring in your vehicle prior to its registration expiration.

Most passenger vehicle registrations expire on the 7th, 14th, 21st and 28th days during the months of February through December. The days leading up to these deadlines are typically very busy times at Clean Air Car Check stations. Avoid the busiest days of the month to reduce your wait time. Corporate fleet vehicles expire January 31st, so the end of January can also be very busy at our testing sites.

The Clean Air Car Check customer service hotline can provide estimated wait times for each station if you phone first. Call 1.888.240.1684 before you head to the testing site.

CONTACT US at 1-888-240-1684 or 219-661-8269 or email