Under the changes announced Thursday, a conditional pass can be issued after two “not ready” tests, provided that:
-At least 24 hours have passed between tests.
-The vehicle has been driven at least 30 km between tests.
-The battery was not disconnected nor OBD codes cleared within the last 30 km.
-The number of “not ready” monitors hasn’t increased.
As a result, the total e-test cost is $52.50 ($35 test plus $17.50 retest).
Resale vehicles that have failed twice for “not ready” can pass a two-speed idle tailpipe test instead. However, not all Drive Clean facilities are equipped for such tests.
In that scenario, the total e-test cost is $87.50 ($35 OBD test, plus $17.50 retest, plus $35 two-speed idle test).
However, the changes do not apply to vehicles with the “check engine” light illuminated, which remains an automatic fail and must be investigated and corrected.
Source-
http://www.wheels.ca/news/drive-clean-tweaks-test-process-after-driver-complaints/