CLEVELAND (AP) -- Motorists in northeast Ohio who must have their vehicles checked for pollution emissions every other year will now have a self-service option.

The expansion of the E-check system was announced Tuesday by the Ohio Environmental Protection Agency.

The changes include more testing locations and around-the-clock self-service. Testing is free.

Officials have added 53 new E-check stations installed at 16 independent businesses and 37 Lube Stops. The existing 23 E-check stations remain.

The Plain Dealer in Cleveland ( http://bit.ly/M1K8aC ) reports Lube Stop President Tom Morley says the company won't be paid for hosting the stations, but hopes to see an increase in business.

The program was created to help Ohio meet federal air quality guidelines.

The testing is required in Cuyahoga (ky-uh-HOH'-guh), Geauga (jee-AW'-guh), Lake, Lorain, Medina, Portage and Summit counties.

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Information from: The Plain Dealer, http://www.cleveland.com