Section 10.12.020 Definitions.

For the purpose of this Ordinance, the following terms, phrases, and words shall have the following meanings, unless otherwise defined:

1. Analyzer Certification: the analyzer manufacturer has met the operating criteria, specifications and requirements of the Environmental Health Services Division of the Davis County Health Department.

2. Accuracy: the degree by which an analyzer is able to determine the accurate concentration of pollutants of interest.

3. Air Intake Systems: systems that allow for the induction of ambient air, including, when applicable, preheated air into the engine combustion chamber for the purpose of mixing with a fuel for combustion.

4. AIR System (Air Injection Reaction): a system for providing supplementary air into a vehicle’s exhaust system to promote catalytic reaction.

6. Audit: a periodic quality assurance check performed by the Division, on equipment and personnel regulated under this chapter.

8. Bar 97: refers to California Bureau of Automotive Repair Analyzer Specifications, which became effective in 1997.

9. Basic Engine Systems: parts or assemblies that provide efficient conversion of a compressed air/fuel charge into useful power, including but not limited to, valve train mechanisms, cylinder head to block integrity, piston-ring-cylinder sealing integrity also pre and post-combustion emissions control device integrity.

10. Bench: the main sample processing assembly of an engine exhaust gas analyzer including detectors, sampling tubes, processor boards, infrared sources and power supply; etc.

11. Calibration: the process of establishing or verifying the accuracy of an analyzer using precisely known values/concentrations.

12. Calibration Gases” gases of accurately known concentration that are used as references for establishing or verifying the calibration curve and accuracy of an analyzer.

13. Carbon Monoxide: a colorless, odorless, asphyxiating gas produced by the incomplete burning of fuels. Carbon Monoxide may be referred to in this Chapter as CO.

14. Catalytic Converter: a post-combustion device that oxidizes HC and CO gases and/or reduces Oxides of Nitrogen gases.

16. Certificate of Compliance: a document used in the Vehicle Emissions Inspection/Maintenance Program to certify that the vehicle has met the requirements of this Chapter.

17. Certification: assurance by an authorized source, whether it be a laboratory, the manufacturer, the state, or the Division, that a specific product or statement is in fact true.

18. Certified Enhanced Basic Test Station: a stationary Enhanced Basic Test Station permitted and operated as required by this Chapter to perform Enhanced I/M Inspections.

19. Certified Emissions Repair Facility and Enhanced Basic Test Station: a business permitted by the Division which engages in emissions related repairs to vehicles, and which meets the requirements of this Chapter to perform emission tests.

20. Certified Emissions Repair Technician and Emission Tester (Technician): a person who has successfully completed all permit requirements and has been issued a current, valid permit by the Division. A person permitted by the Division who diagnoses emissions related faults, and supervises or performs emissions related repairs and adjustments to bring vehicles into compliance with the requirements of this Chapter.

21. Certified Emissions Tester (Tester): a person who has successfully completed all permit requirements and has been issued a current, valid permit by the Division. A person permitted by the Division who tests (inspects) vehicles in a Division permitted Enhanced Basic I/M Program Station to determine their compliance with vehicle emission standards.

23. Constant volume sampler (CVS): a device which is used for collecting samples of diluted exhaust gas and which maintains a constant flow rate of exhaust gas and dilution air.

26. Davis County Centralized Emission Testing Facility: the Certified Enhanced Basic Test Station operated by the Division.

27. Dedicated Printer: the printer on the approved analyzer which is used solely to print certificates, VIR's, and other official Division required documents.

28. Director: the Director of the Environmental Health Services Division of the Davis County Health Department or his/her authorized representative.

31. Drift: the amount the analyzer reading changes, expressed as a percentage of full scale over a period of time. “Zero Drift” refers to no change of the zero reading in the zero mode. “Span Drift” refers to the amount of change in reading of Hydrocarbons or Carbon Monoxide when the analyzer is in the span mode.

32. EGR System: the Exhaust Gas Recirculation System. An emissions control system that recycles or recirculates a portion of the exhaust gases back to the engine combustion chambers primarily to reduce Oxides of Nitrogen emissions.

34. Emissions Control Systems: parts, assemblies or systems originally installed by the manufacturer in or on a vehicle for the sole or primary purpose of reducing emissions.

35. Emissions Control Device: a design element or device installed on a Motor Vehicle by the vehicle manufacturer to comply with the standards of the Clean Air Act, 42 USC, Section 7521, including, but not limited to, the Oxygen Sensor, Catalytic Converter, and the Fuel Inlet Restrictor; and devices integral to the Exhaust Gas Recirculation (EGR) System, the Evaporative Emissions Control System, the Positive Crankcase Ventilation (PCV) System, the Air Injection System, the Fuel Metering System, and the Ignition System.

36. Emissions Related Recall: a manufacturers plan to remedy vehicle emissions related defects or nonconformity with new vehicle emissions standards through either a voluntary emissions recall as defined in 40 CFR, Section 85.1902 (d), 1992 edition, or a remedial plan determination made pursuant to the Clean Air Act, 42 USC, Section 7541.

37. Emissions Related Repair: the Inspection, adjustment, repair, or replacement of Motor Vehicle engine systems, subsystems, or components necessary to bring a vehicle into compliance with the emissions standards set forth in this Chapter.

38. Emission(s) Standard (Cut Point): the maximum allowable concentration of Carbon Monoxide (CO), Hydrocarbons (HC) and Oxides of Nitrogen (NOx) for a given weight class and Model Year of a Motor Vehicle.

39. Emissions: substances expelled into the atmosphere from any opening down-stream of the exhaust valve of a Motor Vehicle; particularly, air contaminants produced by combustion and/or incomplete combustion; as well as Hydrocarbon evaporation from the fuel system and the crankcase. 40. Engine Exhaust Gas Analyzer: an instrument that is capable of measuring the concentrations of certain air contaminants in the exhaust gas emanating from a Motor Vehicle which is approved by the Division for this use in accordance with this Chapter as an official test instrument.

41. Engine Switching: a situation where one engine is removed from a vehicle and is not replaced by an engine that is identical to the original engine.

42. Enhanced Basic I/M Inspections or Testing: testing as approved by the Division applicable to Motor Vehicles of model years and vehicle weight classifications specified by this Chapter and the Division.

43. Evaporative Control System: an Emissions Control System that prevents the escape of fuel vapors from the fuel tank or air cleaner and stores them in a charcoal canister to be burned in the combustion chamber.

44. Exemption Form: a document used to verify that a vehicle is exempt from the testing and repair/adjustment requirements of this Chapter.

45. “Farm Truck” a truck registered as a Farm Truck under the provisions of the Utah State Statute 41-1A-408.

46. Federal Installation: any property or facility subject to the jurisdiction of any department, agency, or instrumentality of the executive, legislative, and judicial branches of the Federal government.

47. Fleet Facility: a corporation or other business entity permitted by the Division to perform the functions of the inspection program for a privately owned fleet of ten (10) or more Motor Vehicles.

48. Fuel Control Systems: mechanical, electromechanical, galvanic or electronic parts or assemblies that regulate the air/fuel ratio in an engine to provide a combustible charge.

49. Gas Span Check: the checking and adjustment, as necessary, of an exhaust gas analyzer to correspond with known concentrations of HC, NO_x and CO span gases.

50. Gas Calibration Check: a procedure using known concentrations of HC, NO_x and CO span gases to verify the accuracy of an analyzer in measuring HC, NO_x and CO.

51. Gaseous Fuel: petroleum gases and natural gases in liquefied or gaseous forms.
52. Automotive Imports (imported vehicle): a vehicle manufactured for use outside of the United States that may not meet USEPA emission requirements for the year manufactured.

53. Gross Vehicle Weight Rating (GVWR): the total vehicle weight, including load, as designated by the vehicle manufacturer.

54. Hang-up: a situation in which Hydrocarbons cling to the surface of the sampling and analyzer systems in contact with the exhaust gas sample stream resulting in errors in HC readings.

55. Heavy Duty Motor Vehicles: trucks and vans 1978 and older, 6001 or greater GVWR rating; 1979 and newer over 8501 GVWR.

56. Hexane Equivalency Value: the value derived from multiplying the propane equivalency factor (P.E.F.), as labeled on the analyzer, by the concentration of propane recorded on the calibration gas cylinder.

57. Hydrocarbons (HC): unburned or incompletely burned fuel. Hydrocarbons may be referred to in this Chapter as HC.

58. Idle Mode: a condition where the vehicle engine is warm and running at the rpm specified by the manufacturer’s curb idle, where the engine is not propelling the vehicle, and where the throttle is in the closed or idle stop position and the transmission is in park or neutral.

59. Ignition Systems: parts or assemblies that are designed to initiate and time the ignition of a compressed air/fuel charge.

60. Inspection: vehicle emissions test performed for the purpose of determining whether a vehicle qualifies for issuance of a Certificate of Compliance.

61. Light Duty Motor Vehicle: all passenger vehicles, 1978 and older; light duty trucks 6000 GVWR rating or less; 1979 trucks and newer 8500 GVWR rating or less.

62. Lock-Out: when the UTAH2000 Analyzer automatically prohibits access to the testing portion of the UTAH2000 Analyzer.

63. Misfueling: the introduction of improper fuel into a vehicle as prohibited under the Clean Air Act, 42 USC, Section 7545.

65. Motor Vehicle: a self-propelled motorized vehicle with an internal combustion powered engine which is registered for use on public roads and/or streets. Motor vehicles exempted from the inspection requirements of this Chapter are listed in Section 10.12.070 of this Chapter, the term “vehicle” is synonymous with Motor Vehicle for the purposes of this Chapter.

66. Motorcycle: every motor vehicle having a saddle for the use of the rider and designed to travel with not more than three wheels in contact with the ground.

67. New Motor Vehicle: a Motor Vehicle whose equitable or legal title has never been transferred to a Person who in good faith purchases the motor vehicle for purposes other than resale.

70. On Board Diagnostics: an emissions control diagnostics system installed on a vehicle as required by the Clean Air Act, 42 USC, Section 7521(m), which identifies deterioration or malfunction of vehicle systems and stores the information for retrieval.

72. Original Condition: the condition of the Emission Control System(s) as installed by the manufacturer, but not necessarily to the original level of effectiveness.

73. PCV System: Positive Crankcase Ventilation System - an Emissions Control System which returns crankcase vapors to the combustion chamber.

74. Primary Residence: where an individual permanently resides, maintains a permanent residence more than six (6) months during a calendar year, or where an individual lives more than six (6) months during a calendar year. Other tests may include where a person votes, spouse resides, children attend school, is employed, identifies as an address on a drivers license, holds a resident hunting or fishing license, etc.

76. Referee Inspection: an emissions inspection conducted by the Division for the purpose of resolving disputes or gathering data.

77. Registered or Registration: the process by which a Motor Vehicle receives a license so that it can be legally operated on public streets and highways.

80. Response Time: the period of time in seconds for an instrument to measure and display a pollutant concentration after a concentration of gases is introduced or removed from the sample probe.

81. Safety Inspection: a safety evaluation of a motor vehicle required by 41-6-117, 53-8-201, 41-1A-205, 63-460, U.C.A., 1953, as amended and in the Federal Register 49CFR 393 and 396.

82. Smoker: gasoline powered vehicles emitting excessive visible emissions. The engine and power mechanism of every gasoline powered Motor Vehicle may not emit visible contaminants during operation except while the engine is being brought up to the recommended operating temperature.

83. Specially Constructed Vehicle: a Motor Vehicle requiring registration to be operated on public highways and streets which is often a replica of a classic car type and is usually made from the chassis of an existing Motor Vehicle, a chassis made up of parts from more than one vehicle type, or a chassis made from "scratch" often with a replica body from a kit attached to the chassis. They may also be homemade without the use of a kit and they may also be factory manufactured. Those made from a kit are often called "Kit Cars."

84. Stabilization: the process of bringing an instrument into equilibrium with the ambient environment and operating conditions.

86. Tampering: the altering or removal of emission control devices, and/or emissions-related equipment. Also, the use of fuels other than those required by the manufacturer’s specification as found in the motor vehicle’s owners manual. Also, engine modifications which may include, but not limited to, Exhaust Systems, Air Intake Systems, Ignition Systems, Internal Engine Modifications, Engine Switching, etc.

87. Technician Bulletin: a document, issued to Certified Emissions Repair Technicians, Certified Emissions Testers and/or I/M Program Stations by the Division to update, clarify or establish policies and/or procedures for their implementation in the Vehicle Emissions Inspection/Maintenance Program.

89. Training Program: a formal program administered, conducted, or approved by the Division for the education of permit holders in basic emission control technology, inspection procedures, diagnosis and repair of emissions related problems, Vehicle Emissions Inspection/Maintenance Program policies as outlined by this Chapter.

90. UTAH2000 (UT2000) Analyzer: a computerized analyzer approved by the Division for use in the areas of Utah requiring inspections as specified in Section 41-6-163.6 and 41-6-163.7, Utah Code Annotated, 1953, as amended.

91. Vehicle Emissions Inspection/Maintenance Program: the program established by the Division pursuant to Section 41-6-163.6, Utah Code Annotated 1953, as amended.

92. Vehicle Inspection Report (VIR): a report printed by the UTAH2000 Analyzer at the end of the test which enumerates the results of the test. The VIR is signed by the permitted tester performing the test and the person who presented the vehicle for Inspection.

93. Waiver or Certificate of Waiver: a document used to verify that a vehicle has met the repair or adjustment requirements of the I/M Program Ordinances even though specific emission standards have not been met.

(Ord. 6-2008, Amended, 07/15/2008, Prior Text; Ord. 03-2002, Amended, 10/01/2002, Prior Text)