Make sure your tires are in good condition and properly
inflated. Make sure the "check engine" light or any other dashboard warning lights
are NOT on. Make sure that your vehicle has no fluid leaks and no safety issues.
Remember, your vehicle will be strapped down on a dynamometer and required to perform
flawlessly under stressful conditions.
VEHICLE MAINTENANCE AND PREPARATION -
Don't change the size
of the tires from the original specifications. The dynamometer test equipment is
calibrated to the "stock" tire size. Over- or under-sized tires will alter the speed
calculations performed by the test equipment and may prevent your vehicle from going
through the test since the machine won't sense the correct speed for your vehicle's
tire size. Make sure your vehicle has a clean air filter and fresh engine oil.
Make sure your vehicle's gasoline cap fits your vehicle, isn't damaged and is
turned tightly in place. A vehicle without a gas cap is an automatic Smog Check
test failure. The week of the Smog Check test, take the vehicle out for an extended
drive, preferably on the freeway and especially if you're regularly a "short trip"
driver. Drive approximately 30 minutes or longer at varying speeds on freeways,
surface streets and up hills.
THE DAY OF THE SMOG CHECK TEST -
Fill the gas tank of your vehicle
with the grade of fuel stated in the owner's manual. Make sure all fluids are topped
off and that all non-essential items are removed from the trunk or the rear of the
vehicle. The dynamometer weighs your vehicle before the test, and if the vehicle
is heavier than it should be, the weight will make it harder to pass. Drive at least
30 minutes before arriving at the Smog Check test facility to ensure the car or
truck has reached full operating temperature.
Ask the repair facility if they can perform the test within 15 minutes of your
arrival. This will let the vehicle return to normal operating temperature quickly.
Remember to bring the DMV renewal notice with you to the repair facility. The paperwork
has a bar code on it that needs to be scanned for the Smog Check test. If you don't
have the paperwork, the repair facility may charge you for the extra time it takes
to input the vehicle identification number that they could pick up from the bar
Stations with inspection activities during the time period. This count differs
from the number of stations licensed because a station that is licensed to do smog
inspections may not have any activity during a particular time period.
A count of licensed technicians. Some licensed technicians may not be assigned
to stations. Counts are broken down by license classification:
EA - licensed to conduct BAR-97 loaded-mode tests (ASM)
in Enhanced areas as well as BAR-90 (TSI) tests,
EB - licensed to conduct BAR-90 (TSI) tests in basic and
EU - formerly an advanced license, this classification is
being phased out.
Refers to those portions of the state with moderate air
pollution. Biennial testing (every two years) is required in Basic areas. The two-speed
idle test is used in Basic Areas; dynamometer testing is not required.
Certificates Issued -
Counts all Smog Check inspections resulting
in the issue of a certificate, or waivers resulting in the issue of a certificate.
Change of Ownership -
These are predominantly rural areas of
the state with the cleanest air. Vehicles registered in Change-of-Ownership areas
require testing only during a sale or prior to initial California registration.
The two-speed idle test is used in Basic Areas; dynamometer testing is not required.
Cost Waiver -
The Repair Cost Waiver allows a vehicle to be
registered without passing its Smog Check inspection. A motorist must spend $450
on emissions-related repairs by a licensed Smog Check technician at a licensed Smog
Check station in order to qualify for a Repair Cost Waiver.
REG - Regular - Licensed to perform official smog inspections
and repairs. Prohibited from issuing certificates to Gross Polluters.
GS - Gold Shield - Licensed to perform official smog inspections
and repairs. Issue certificates to Gross Polluters; perform state-subsidized
repairs; perform the "after repairs" certification test on vehicles that were
directed to, and failed their Smog Check at a Test-Only station, provided that
the vehicles were repaired at the Gold Shield station.
TST - Test Only - Licensed to perform official smog inspections
and issue certificates to all vehicles. Prohibited from performing all diagnostics
REF - Referee - Issues repair cost waivers and economic
hardship exemptions, inspects vehicles granted limited parts exemptions, inspects
vehicles with engine changes, inspects gray-market and special construction
vehicles, and resolves disputes between customers and Smog Check stations.
Gov. Fl. - Government Fleets - sites established by government
agencies to test their vehicles.
Bus. Fl. - Business Fleets - sites established by businesses
and corporations to test fleets which they manage.
These are the areas of the state with the most severe
air pollution, as determined by the United States Environmental Protection Agency.
Biennial inspection (every two years) using the BAR-97 loaded-mode (dynamometer)
test is required for vehicles registered in Enhanced areas. Vehicles must also be
inspected when sold, or upon initial California registration.
Gross Polluter: A subset of tailpipe failures, gross polluters
emit the most pollution of all failures, usually double the allowable limit
Tailpipe: Any vehicle which fails because of excessive concentration
of pollutants as measured at the tailpipe.
Functional: The gas cap test, ignition timing and exhaust
gas recalculation (EGR) check are part of the functional test.
- Visual: Missing, modified or disconnected emissions parts
as noted by the technician during their visual inspection of the vehicle.
Note: the above categories are not mutually exclusive -- a vehicle may be counted
in any combination of them.
The Economic Hardship Extension allows a vehicle
to be registered immediately without passing its Smog Check inspection and gives
a vehicle owner up to two years to complete the repairs needed to bring the vehicle
into compliance with emissions standards. To obtain an extension, a vehicle must
be brought to a Referee Center, where tests may be performed.
First Test -
This is the first test on any vehicle for an inspection
cycle. If a vehicle has not been tested for 180 days prior to a test, then that
test is considered an initial episode test regardless of the outcome of any prior
test. No tests in the 180 days following an initial episode test are considered
as an initial episode tests regardless of the outcome of any intervening tests.
Referee Activity -
Tests performed and waivers or extensions
issued at "Referee" sites.
Unique Vehicles -
Includes all unique vehicle identification (VIN)
or license plate numbers. If a vehicle failed during the previous time period and
passed an after-repairs test during the current one, it will be included. If it
fails during the current period and gets a certificate or other tests later, it
is included in the report.
Vehicle Information Database -
The Bureau of Automotive Repair's
central Smog Check computer, which transmits vehicle information to, and collects
test result information from, Smog Check station test equipment.
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