QUEEN’S PARK, Ont. — Ontario’s hesitation to enforce the emission-reducing regulations aimed specifically at passenger vehicles has left many people questioning the program’s fairness.

Under the emissions-testing program, car owners need to have their cars tested every two years to ensure pollutants are within an acceptable level.

The initial idea was that cars failing the test would be repaired or hauled off the road, but a two-year grace period was allowed for cars requiring repairs of more than $200. But, the tough measures are on hold and the entire program is going to be reviewed.

The grace period for drivers failing the test was supposed to expire in the Greater Toronto Area on Dec. 31, but was extended by the province until Mar. 31. Now, it has been extended again until June 30.

The Environment Ministry says it wants to see if there are ways to operate the program more efficiently or if there are any elements that should be changed or improved.

Despite the review, province-wide testing of commercial vehicles will continue as usual.