http://www.driveclean.com/
If you own a passenger car or light truck (ie. vehicles weighing 4500 kg or less) in the Drive Clean program area, it will have to pass a Drive Clean test every two years prior to renewing the sticker on the licence plate. This applies to vehicles that are more than three model years old and less than 20 model years old. You will be notified up to 90 days before the deadline for renewing your vehicle licence plate.
Passing an emissions test is also required to transfer ownership and licence a vehicle for the road. If your vehicle is less than 20 model years old, and if the ownership change must have a safety certificate to be effective (e.g. at resale), it must pass a Drive Clean test. Current and future model years (e.g. 2001 and 2002 models in the year 2001), vehicles 20 model years or older, light-duty commercial farm vehicles, and motorcycles are exempt.
Testing at registration alternates between odd-year models and even-year models. For passenger cars and light trucks, check the model year of your vehicle (below) to see if it requires a Drive Clean test at registration renewal in 2002 or 2003. Model years are calculated beginning with the current year, which counts as the first model year.
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Model years to be tested in 2002
1983 1985 1987 1989 1991 1993 1995 1997 1999
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Model years to be tested in 2003
1984 1986 1988 1990 1992 1994 1996 1998 2000
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If you own a heavy-duty truck or bus (vehicle weighing more than 4,500 kg), your vehicle may also require a Drive Clean emissions test prior to renewing licence plate registration, if the vehicle is more that three model years old.
http://www.cleanairforce.com/emission.htm