Vehicle Emissions Inspection & Maintenance Rules & Regulations

a. During testing, the minimum RPM for automatictransmissions is 100 RPM. The minimum RPM forstandard transmissions is 1250 RPM. The maximumRPM for either is 3000 RPM.b. If the length of the vehicle prevents the use of theanalyzer tachometer lead when the exhaust probeis placed in the tail pipe, then a RPM bypass isapproved. The authority to bypass any other RPMsignals may only be granted by DPS.10. Follow the screen prompts to conduct a completeemissions inspection using the ASM five-gas analyzerand dynamometer except under the following conditions:a. Vehicle has All Wheel Drive, Full Time 4 WheelDrive, Non-disengageable Traction Control, orb. Gross Vehicle Weight (GVW) greater than 8500pounds.c. Under both conditions, the dynamometer cannotbe utilized. When this information is entered intothe analyzer, it will automatically prompt the inspectorto conduct a Two-Speed Idle (TSI) test.The analyzer will prompt the inspector, step by step,through a Two-Speed Idle (TSI) test.NOTE: Vehicles too large to fit into a standard inspectionbay can be inspected outside the building, as closeto the analyzer as possible, in an area approved by adepartment representative.11. Gas Cap Testing. Every gasoline-powered vehiclefrom 2-24 model years old will be checked for presenceof a gas cap and then tested by a departmentapproved “gas cap testing device” to determine if thegas cap is defective. The following vehicles areexempt:a. Antique vehicles.b. Slow-moving vehicles.c. Motorcycles.d. Vehicles operated exclusively by a fuel other thangasoline.e. Vehicles newer than two (2) years old and olderthan 24 years old.A. Inspection Procedure.a. Conduct daily calibration check of gas cap testingdevice.b. Check for presence (all gas caps must be present).c. Check for correct type of gas cap(s).d. Remove gas cap(s) and test using an approvedtesting device. (Gas cap present but not testablewill not be cause for rejection.)e. Any gas cap(s) failing the initial test will be testeda second time to verify failure.B. Inspect for and reject if:a. Vehicle not equipped with required gas cap(s).b. Vehicle not equipped with proper type gas cap(s).c. Gas cap(s) fails both tests.12. Emissions test results are automatically recordedas pass/fail.13. If the vehicle passes the required inspections, thenthe analyzer will prompt the inspector to enter the certificatenumber.a. Use an ASM certificate only for a Safety andEmissions inspection, except as otherwise directedby DPS.b. Use the unique Emissions-Test-Only inspectioncertificate for an emissions-only inspection.14. The inspector must give a copy of the test resultsto the motorist. The inspector conducting the test willsign the test results.Texas Transportation Code, Section 548.053, states “Ifan inspection discloses the necessity for adjustment,correction, or repair, an inspection station or inspectormay not issue an inspection certificate until the adjustment,correction, or repair is made.”If a vehicle fails any item of inspection, the inspectorshall enter the reason for rejection in the space providedon the rejection receipt (VI-7) by typing it in whilethe rejection receipt is displayed on the analyzer or byhandwriting it in after the rejection receipt is printed bythe analyzer. The inspector shall verbally explain thereason for the rejection and mark a large “X” on theback of the certificate currently displayed on the vehicle.A vehicle presented for re-inspection within 15 days, notcounting the day of inspection, will be inspected using there-inspection menu only.The inspector shall provide the motorist whose vehiclehas failed with the following:2-4