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 2019
2015 2013 2011 2009 2007 2005
2003 2001 1999 1997 1995 1993
1991 1989 1987 1985 1983 1981
1979 1977        


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 2019:

New Year's Day Tuesday, January 1, 2019
Martin Luther King, Jr. Day Monday, January 21, 2019
Good Friday Friday, April 19, 2019
Primary Election Day Tuesday, May 7, 2019
Memorial Day Monday, May 27, 2019
Independence Day Thursday, July 4, 2019
Labor Day Monday, September 2, 2019
Columbus Day Monday, October 14, 2019
General Election Day Tuesday, November 5, 2019
Veteran's Day Monday, November 11, 2019
Thanksgiving Day Thursday, November 28, 2019
Lincoln's Birthday Friday, November 29, 2019
Washington's Birthday Tuesday, December 24, 2019
Christmas Day Wednesday, December 25, 2019


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