Here's the three-year schedule for calling in older cars to the new Davis emissions testing facility in Kaysville:
1998: Cars built in 1986, 1989 and 1992.1999: 1987, 1990 and 1993 models.
2000: 1988, 1991 and 1994 cars.
Model cars 1996 and newer are already being tested at the facility through their on-board computers. These newer cars' computers have diagnostic systems that already record emissions information while the car runs on the road, so they don't need the new 240-second test.
Rather, technicians simply tap into the car's computer to check how well it's doing in a much shorter evaluation.
The new emission test for pre-1996 cars is an "IM-240" evaluation and may include running a vehicle at speeds as high as 58 mph on a treadmill for as long as 240 seconds. (The test may last only 30 seconds if a car is running extremely clean.)
A hose hooked up to the exhaust will measure emissions. Even gas caps will be tested as a pollution causer.
The extensive test will be monitored by a computer and will reveal exactly how many pollutants a vehicle puts into the air. It measures nitrogen oxide emissions - the last gap in air pollution.
The test can be done up to 60 days before the registration expires.
The Kaysville facility has seven lanes and is open 8 a.m. to 5 p.m. weekdays and 8 a.m to 2 p.m. on Saturdays. There may be extended hours on summer week-days.
Lines are expected to be shortest from 10 to 11 a.m. and 2 to 3 p.m. on weekdays. Saturday afternoons may also have short lines.
For more information, call the emissions testing facility at 546-8860.