Title 40 -- Protection of Environment
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PART 86 -- CONTROL OF EMISSIONS FROM NEW AND IN-USE HIGHWAY VEHICLES AND ENGINES

      §86.1 Reference materials.
   
Subpart A -- General Provisions for Emission Regulations for 1977 and Later Model Year New Light-Duty Vehicles, Light-Duty Trucks and Heavy-Duty Engines, and for 1985 and Later Model Year New Gasoline Fueled, Natural Gas-Fueled, Liquefied Petroleum Gas-Fueled and Methanol-Fueled Heavy-Duty Vehicles

      §86.000-2 Definitions.
      §86.000-3 Abbreviations.
      §86.000-7 Maintenance of records; submittal of information; right of entry.
      §86.000-8 Emission standards for 2000 and later model year light-duty vehicles.
      §86.000-9 Emission standards for 2000 and later model year light-duty trucks.
      §86.000-15 NOX and particulate averaging, trading, and banking for heavy-duty engines.
      §86.000-16 Prohibition of defeat devices.
      §86.000-21 Application for certification.
      §86.000-23 Required data.
      §86.000-24 Test vehicles and engines.
      §86.000-25 Maintenance.
      §86.000-26 Mileage and service accumulation; emission measurements.
      §86.000-28 Compliance with emission standards.
      §86.001-1 General applicability.
      §86.001-2 Definitions.
      §86.001-9 Emission standards for 2001 and later model year light-duty trucks
      §86.001-21 Application for certification.
      §86.001-22 Approval of application for certification; test fleet selections; determinations of parameters subject to adjustment for certification and Selective Enforcement Audit, adequacy of limits, and physically adjustable ranges.
      §86.001-23 Required data.
      §86.001-24 Test vehicles and engines.
      §86.001-25 Maintenance.
      §86.001-26 Mileage and service accumulation; emission measurements.
      §86.001-28 Compliance with emission standards.
      §86.001-30 Certification.
      §86.001-35 Labeling.
      §86.004-2 Definitions.
      §86.004-9 Emission standards for 2004 and later model year light-duty trucks.
      §86.004-11 Emission standards for 2004 and later model year diesel heavy-duty engines and vehicles.
      §86.004-15 NOX plus NMHC and particulate averaging, trading, and banking for heavy-duty engines.
      §86.004-16 Prohibition of defeat devices.
      §86.004-21 Application for certification.
      §86.004-25 Maintenance.
      §86.004-26 Mileage and service accumulation; emission measurements.
      §86.004-28 Compliance with emission standards.
      §86.004-30 Certification.
      §86.004-38 Maintenance instructions.
      §86.004-40 Heavy-duty engine rebuilding practices.
      §86.005-1 General applicability.
      §86.005-10 Emission standards for 2005 and later model year Otto-cycle heavy-duty engines and vehicles.
      §86.005-17 On-board diagnostics.
      §86.007-11 Emission standards and supplemental requirements for 2007 and later model year diesel heavy-duty engines and vehicles.
      §86.007-15 NOX and particulate averaging, trading, and banking for heavy-duty engines.
      §86.007-21 Application for certification.
      §86.007-23 Required data.
      §86.007-25 Maintenance.
      §86.007-35 Labeling.
      §86.007-38 Maintenance instructions.
      §86.008-10 Emission standards for 2008 and later model year Otto-cycle heavy-duty engines and vehicles.
      §86.008-10 Emission standards for 2008 and later model year Otto-cycle heavy-duty engines and vehicles.
      §86.078-3 Abbreviations.
      §86.078-6 Hearings on certification.
      §86.079-31 Separate certification.
      §86.079-32 Addition of a vehicle or engine after certification.
      §86.079-33 Changes to a vehicle or engine covered by certification.
      §86.079-36 Submission of vehicle identification numbers.
      §86.079-39 Submission of maintenance instructions.
      §86.080-12 Alternative certification procedures.
      §86.082-2 Definitions.
      §86.082-34 Alternative procedure for notification of additions and changes.
      §86.084-2 Definitions.
      §86.084-4 Section numbering; construction.
      §86.084-40 Automatic expiration of reporting and recordkeeping requirements.
      §86.085-1 General applicability.
      §86.085-2 Definitions.
      §86.085-13 Alternative Durability Program.
      §86.085-20 Incomplete vehicles, classification.
      §86.085-37 Production vehicles and engines.
      §86.087-2 Definitions.
      §86.087-38 Maintenance instructions.
      §86.088-2 Definitions.
      §86.088-10 Emission standards for 1988 and 1989 model year gasoline-fueled heavy-duty engines and vehicles.
      §86.090-1 General applicability.
      §86.090-2 Definitions.
      §86.090-3 Abbreviations.
      §86.090-5 General standards; increase in emissions; unsafe conditions.
      §86.090-8 Emission standards for 1990 and later model year light-duty vehicles.
      §86.090-9 Emission standards for 1990 and later model year light-duty trucks.
      §86.090-14 Small-volume manufacturers certification procedures.
      §86.090-21 Application for certification.
      §86.090-22 Approval of application for certification; test fleet selections; determinations of parameters subject to adjustment for certification and Selective Enforcement Audit, adequacy of limits, and physically adjustable ranges.
      §86.090-24 Test vehicles and engines.
      §86.090-25 Maintenance.
      §86.090-26 Mileage and service accumulation; emission requirements.
      §86.090-27 Special test procedures.
      §86.091-2 Definitions.
      §86.091-7 Maintenance of records; submittal of information; right of entry.
      §86.091-9 Emission standards for 1991 and later model year light-duty trucks.
      §86.091-10 Emission standards for 1991 and later model year Otto-cycle heavy-duty engines and vehicles.
      §86.091-11 Emission standards for 1991 and later model year diesel heavy-duty engines.
      §86.091-15 NOX and particulate averaging, trading, and banking for heavy-duty engines.
      §86.091-21 Application for certification.
      §86.091-23 Required data.
      §86.091-28 Compliance with emission standards.
      §86.091-29 Testing by the Administrator.
      §86.091-30 Certification.
      §86.091-35 Labeling.
      §86.092-1 General applicability.
      §86.092-2 Definitions.
      §86.092-14 Small-volume manufacturers certification procedures.
      §86.092-15 NOX and particulate averaging, trading, and banking for heavy-duty engines.
      §86.092-23 Required data.
      §86.092-24 Test vehicles and engines.
      §86.092-26 Mileage and service accumulation; emission measurements.
      §86.092-35 Labeling.
      §86.093-2 Definitions.
      §86.093-11 Emission standards for 1993 and later model year diesel heavy-duty engines.
      §86.093-35 Labeling.
      §86.094-1 General applicability.
      §86.094-2 Definitions.
      §86.094-3 Abbreviations.
      §86.094-7 Maintenance of records; submittal of information; right of entry.
      §86.094-8 Emission standards for 1994 and later model year light-duty vehicles.
      §86.094-9 Emission standards for 1994 and later model year light-duty trucks.
      §86.094-11 Emission standards for 1994 and later model year diesel heavy-duty engines and vehicles.
      §86.094-13 Light-duty exhaust durability programs.
      §86.094-14 Small-volume manufacturers certification procedures.
      §86.094-15 NOX and particulate averaging, trading, and banking for heavy-duty engines.
      §86.094-16 Prohibition of defeat devices.
      §86.094-17 Emission control diagnostic system for 1994 and later light-duty vehicles and light-duty trucks.
      §86.094-21 Application for certification.
      §86.094-22 Approval of application for certification; test fleet selections; determinations of parameters subject to adjustment for certification and Selective Enforcement Audit, adequacy of limits, and physically adjustable ranges.
      §86.094-23 Required data.
      §86.094-24 Test vehicles and engines.
      §86.094-25 Maintenance.
      §86.094-26 Mileage and service accumulation; emission requirements.
      §86.094-28 Compliance with emission standards.
      §86.094-30 Certification.
      §86.094-35 Labeling.
      §86.094-38 Maintenance instructions.
      §86.095-14 Small-volume manufacturers certification procedures.
      §86.095-23 Required data.
      §86.095-24 Test vehicles and engines.
      §86.095-26 Mileage and service accumulation; emission measurements.
      §86.095-30 Certification.
      §86.095-35 Labeling.
      §86.096-2 Definitions.
      §86.096-3 Abbreviations.
      §86.096-7 Maintenance of records; submittal of information; right of entry.
      §86.096-8 Emission standards for 1996 and later model year light-duty vehicles.
      §86.096-9 Emission standards for 1996 and later model year light-duty trucks.
      §86.096-10 Emission standards for 1996 and later model year Otto-cycle heavy-duty engines and vehicles.
      §86.096-11 Emission standards for 1996 and later model year diesel heavy-duty engines and vehicles.
      §86.096-14 Small-volume manufacturer certification procedures.
      §86.096-21 Application for certification.
      §86.096-23 Required data.
      §86.096-24 Test vehicles and engines.
      §86.096-26 Mileage and service accumulation; emission measurements.
      §86.096-30 Certification.
      §86.096-35 Labeling.
      §86.096-38 Maintenance instructions.
      §86.097-9 Emission standards for 1997 and later model year light-duty trucks.
      §86.098-2 Definitions.
      §86.098-3 Abbreviations.
      §86.098-7 Maintenance of records; submittal of information; right of entry.
      §86.098-8 Emission standards for 1998 and later model year light-duty vehicles.
      §86.098-10 Emission standards for 1998 and later model year Otto-cycle heavy-duty engines and vehicles.
      §86.098-11 Emission standards for 1998 and later model year diesel heavy-duty engines and vehicles.
      §86.098-14 Small-volume manufacturers certification procedures.
      §86.098-15 NOX and particulate averaging, trading, and banking for heavy-duty engines.
      §86.098-17 Emission control diagnostic system for 1998 and later light-duty vehicles and light-duty trucks.
      §86.098-21 Application for certification.
      §86.098-22 Approval of application for certification; test fleet selections; determinations of parameters subject to adjustment for certification and Selective Enforcement Audit, adequacy of limits, and physically adjustable ranges.
      §86.098-23 Required data.
      §86.098-24 Test vehicles and engines.
      §86.098-25 Maintenance.
      §86.098-26 Mileage and service accumulation; emission measurements.
      §86.098-28 Compliance with emission standards.
      §86.098-30 Certification.
      §86.098-35 Labeling.
      §86.099-1 General applicability.
      §86.099-8 Emission standards for 1999 and later model year light-duty vehicles.
      §86.099-9 Emission standards for 1999 and later model year light-duty trucks.
      §86.099-10 Emission standards for 1999 and later model year Otto-cycle heavy-duty engines and vehicles.
      §86.099-11 Emission standards for 1999 and later model year diesel heavy-duty engines and vehicles.
      §86.099-17 Emission control diagnostic system for 1999 and later light-duty vehicles and light-duty trucks.
      §86.099-30 Certification.
   
Subpart B -- Emission Regulations for 1977 and Later Model Year New Light-Duty Vehicles and New Light-Duty Trucks and New Otto-Cycle Complete Heavy-Duty Vehicles; Test Procedures

      §86.101 General applicability.
      §86.102 Definitions.
      §86.103 Abbreviations.
      §86.104 Section numbering; construction.
      §86.105 Introduction; structure of subpart.
      §86.106-00 Equipment required; overview.
      §86.106-90 Equipment required; overview.
      §86.106-94 Equipment required; overview.
      §86.106-96 Equipment required; overview.
      §86.107-90 Sampling and analytical system; evaporative emissions.
      §86.107-96 Sampling and analytical systems; evaporative emissions.
      §86.107-98 Sampling and analytical system.
      §86.108-00 Dynamometer.
      §86.108-79 Dynamometer.
      §86.109-90 Exhaust gas sampling system; Otto-cycle vehicles.
      §86.109-94 Exhaust gas sampling system; Otto-cycle vehicles not requiring particulate emission measurements.
      §86.110-90 Exhaust gas sampling system; diesel vehicles.
      §86.110-94 Exhaust gas sampling system; diesel-cycle vehicles, and Otto-cycle vehicles requiring particulate emissions measurements.
      §86.111-90 Exhaust gas analytical system.
      §86.111-94 Exhaust gas analytical system.
      §86.112-91 Weighing chamber (or room) and microgram balance specifications.
      §86.113-04 Fuel specifications.
      §86.113-07 Fuel specifications.
      §86.113-91 Fuel specifications.
      §86.113-94 Fuel specifications.
      §86.114-79 Analytical gases.
      §86.114-94 Analytical gases.
      §86.115-00 EPA dynamometer driving schedules.
      §86.115-78 EPA urban dynamometer driving schedule.
      §86.116-90 Calibrations, frequency and overview.
      §86.116-94 Calibrations, frequency and overview.
      §86.117-90 Evaporative emission enclosure calibrations.
      §86.117-96 Evaporative emission enclosure calibrations.
      §86.118-00 Dynamometer calibrations.
      §86.118-78 Dynamometer calibration.
      §86.119-90 CVS calibration.
      §86.120-82 Gas meter or flow instrumentation calibration, particulate measurement.
      §86.120-94 Gas meter or flow instrumentation calibration; particulate, methanol and formaldehyde measurement.
      §86.121-82 Hydrocarbon analyzer calibration.
      §86.121-90 Hydrocarbon analyzer calibration.
      §86.122-78 Carbon monoxide analyzer calibration.
      §86.123-78 Oxides of nitrogen analyzer calibration.
      §86.124-78 Carbon dioxide analyzer calibration.
      §86.125-94 Methane analyzer calibration.
      §86.126-90 Calibration of other equipment.
      §86.127-00 Test procedures; overview.
      §86.127-90 Test procedures; overview.
      §86.127-94 Test procedures; overview.
      §86.127-96 Test procedures; overview.
      §86.128-00 Transmissions.
      §86.128-79 Transmissions.
      §86.129-00 Road load power, test weight, and inertia weight class determination.
      §86.129-00 Road load power, test weight, and inertia weight class determination.
      §86.129-80 Road load power, test weight, and inertia weight class determination.
      §86.129-94 Road load power, test weight, inertia weight class determination, and fuel temperature profile.
      §86.130-00 Test sequence; general requirements.
      §86.130-78 Test sequence; general requirements.
      §86.130-96 Test sequence; general requirements.
      §86.131-00 Vehicle preparation.
      §86.131-90 Vehicle preparation.
      §86.131-96 Vehicle preparation.
      §86.132-00 Vehicle preconditioning.
      §86.132-90 Vehicle preconditioning.
      §86.132-96 Vehicle preconditioning.
      §86.133-90 Diurnal breathing loss test.
      §86.133-96 Diurnal emission test.
      §86.134-96 Running loss test.
      §86.135-00 Dynamometer procedure.
      §86.135-90 Dynamometer procedure.
      §86.135-94 Dynamometer procedure.
      §86.136-90 Engine starting and restarting.
      §86.137-90 Dynamometer test run, gaseous and particulate emissions.
      §86.137-94 Dynamometer test run, gaseous and particulate emissions.
      §86.137-96 Dynamometer test run, gaseous and particulate emissions.
      §86.138-90 Hot-soak test.
      §86.138-96 Hot soak test.
      §86.139-90 Particulate filter handling and weighing.
      §86.140-82 Exhaust sample analysis.
      §86.140-90 Exhaust sample analysis.
      §86.140-94 Exhaust sample analysis.
      §86.142-90 Records required.
      §86.143-90 Calculations; evaporative emissions.
      §86.143-96 Calculations; evaporative emissions.
      §86.144-90 Calculations; exhaust emissions.
      §86.144-94 Calculations; exhaust emissions.
      §86.145-82 Calculations; particulate emissions.
      §86.146-96 Fuel dispensing spitback procedure.
      §86.150-98 Refueling test procedure; overview.
      §86.151-98 General requirements; refueling test.
      §86.152-98 Vehicle preparation; refueling test.
      §86.153-98 Vehicle and canister preconditioning; refueling test.
      §86.154-98 Measurement procedure; refueling test.
      §86.155-98 Records required; refueling test.
      §86.156-98 Calculations; refueling test.
      §86.157-98 Refueling test procedures for liquefied petroleum gas-fueled vehicles.
      §86.158-00 Supplemental Federal Test Procedures; overview.
      §86.159-00 Exhaust emission test procedures for US06 emissions.
      §86.160-00 Exhaust emission test procedure for SC03 emissions.
      §86.161-00 Air conditioning environmental test facility ambient requirements.
      §86.162-00 Approval of alternative air conditioning test simulations and descriptions of AC1 and AC2.
      §86.162-03 Approval of alternative air conditioning test simulations.
      §86.163-00 Spot check correlation procedures for vehicles tested using a simulation of the environmental test cell for air conditioning emission testing.
      §86.164-00 Supplemental Federal Test Procedure calculations.
   
Subpart C -- Emission Regulations for 1994 and Later Model Year Gasoline-Fueled New Light-Duty Vehicles, New Light-Duty Trucks and New Medium-Duty Passenger Vehicles; Cold Temperature Test Procedures

      §86.201-94 General applicability.
      §86.202-94 Definitions.
      §86.203-94 Abbreviations.
      §86.204-94 Section numbering; construction.
      §86.205-94 Introduction; structure of this subpart.
      §86.206-94 Equipment required; overview.
      §86.207-94 [Reserved]
      §86.208-94 Dynamometer.
      §86.209-94 Exhaust gas sampling system; gasoline-fueled vehicles.
      §86.210-94 [Reserved]
      §86.211-94 Exhaust gas analytical system.
      §86.212-94 [Reserved]
      §86.213-04 Fuel specifications.
      §86.213-94 Fuel specifications.
      §86.214-94 Analytical gases.
      §86.215-94 EPA urban dynamometer driving schedule.
      §86.216-94 Calibrations, frequency and overview.
      §86.217-94 [Reserved]
      §86.218-94 Dynamometer calibration.
      §86.219-94 CVS calibration.
      §86.220-94 [Reserved]
      §86.221-94 Hydrocarbon analyzer calibration.
      §86.222-94 Carbon monoxide analyzer calibration.
      §86.223-94 Oxides of nitrogen analyzer calibration.
      §86.224-94 Carbon dioxide analyzer calibration.
      §86.225-94 [Reserved]
      §86.226-94 Calibration of other equipment.
      §86.227-94 Test procedures; overview.
      §86.228-94 Transmissions.
      §86.229-94 Road load force, test weight, and inertia weight class determination.
      §86.230-94 Test sequence: general requirements.
      §86.231-94 Vehicle preparation.
      §86.232-94 Vehicle preconditioning.
      §§86.233-94 -- 86.234-94 [Reserved]
      §86.235-94 Dynamometer procedure.
      §86.236-94 Engine starting and restarting.
      §86.237-94 Dynamometer test run, gaseous emissions.
      §§86.238-94 -- 86.239-94 [Reserved]
      §86.240-94 Exhaust sample analysis.
      §86.241-94 [Reserved]
      §86.242-94 Records required.
      §86.243-94 [Reserved]
      §86.244-94 Calculations; exhaust emissions.
      §86.245-94 [Reserved]
      §86.246-94 Intermediate temperature testing.
   
Subpart D -- Emission Regulations for New Gasoline-Fueled and Diesel-Fueled Heavy-Duty Engines; Gaseous Exhaust Test Procedures

      §86.301-79 Scope; applicability.
      §86.302-79 Definitions.
      §86.303-79 Abbreviations.
      §86.304-79 Section numbering; construction.
      §86.305-79 Introduction; structure of subpart.
      §86.306-79 Equipment required and specifications; overview.
      §86.307-82 Fuel specifications.
      §86.308-79 Gas specifications.
      §86.309-79 Sampling and analytical system; schematic drawing.
      §86.310-79 Sampling and analytical system; component specifications.
      §86.311-79 Miscellaneous equipment; specifications.
      §86.312-79 Dynamometer and engine equipment specifications.
      §86.313-79 Air flow measurement specifications; diesel engines.
      §86.314-79 Fuel flow measurement specifications.
      §86.315-79 General analyzer specifications.
      §86.316-79 Carbon monoxide and carbon dioxide analyzer specifications.
      §86.317-79 Hydrocarbon analyzer specifications.
      §86.318-79 Oxides of nitrogen analyzer specifications.
      §86.319-79 Analyzer checks and calibrations; frequency and overview.
      §86.320-79 Analyzer bench check.
      §86.321-79 NDIR water rejection ratio check.
      §86.322-79 NDIR CO2 rejection ratio check.
      §86.327-79 Quench checks; NOX analyzer.
      §86.328-79 Leak checks.
      §86.329-79 System response time; check procedure.
      §86.330-79 NDIR analyzer calibration.
      §86.331-79 Hydrocarbon analyzer calibration.
      §86.332-79 Oxides of nitrogen analyzer calibration.
      §86.333-79 Dynamometer calibration.
      §86.334-79 Test procedure overview.
      §86.335-79 Gasoline-fueled engine test cycle.
      §86.336-79 Diesel engine test cycle.
      §86.337-79 Information.
      §86.338-79 Exhaust measurement accuracy.
      §86.339-79 Pre-test procedures.
      §86.340-79 Gasoline-fueled engine dynamometer test run.
      §86.341-79 Diesel engine dynamometer test run.
      §86.342-79 Post-test procedures.
      §86.343-79 Chart reading.
      §86.344-79 Humidity calculations.
      §86.345-79 Emission calculations.
      §86.346-79 Alternative NOX measurement technique.
      §86.347-79 Alternative calculations for diesel engines.
      §86.348-79 Alternative to fuel H/C analysis.
   
Subpart E -- Emission Regulations for 1978 and Later New Motorcycles, General Provisions

      §86.401-90 General applicability.
      §86.401-97 General applicability.
      §86.402-78 Definitions.
      §86.402-98 Definitions.
      §86.403-78 Abbreviations.
      §86.404-78 Section numbering.
      §86.405-78 Measurement system.
      §86.406-78 Introduction, structure of subpart, further information.
      §86.407-78 Certificate of conformity required.
      §86.408-78 General standards; increase in emissions; unsafe conditions.
      §86.409-78 Defeat devices, prohibition.
      §86.410-80 Emission standards for 1980 and later model year motorcycles.
      §86.410-90 Emission standards for 1990 and later model year motorcycles.
      §86.411-78 Maintenance instructions, vehicle purchaser.
      §86.412-78 Maintenance instructions, submission to Administrator.
      §86.413-78 Labeling.
      §86.414-78 Submission of vehicle identification number.
      §86.415-78 Production vehicles.
      §86.416-80 Application for certification.
      §86.417-78 Approval of application for certification.
      §86.418-78 Test fleet selection.
      §86.419-78 Engine displacement, motorcycle classes.
      §86.420-78 Engine families.
      §86.421-78 Test fleet.
      §86.422-78 Administrator's fleet.
      §86.423-78 Test vehicles.
      §86.425-78 Test procedures.
      §86.426-78 Service accumulation.
      §86.427-78 Emission tests.
      §86.428-80 Maintenance, scheduled; test vehicles.
      §86.429-78 Maintenance, unscheduled; test vehicles.
      §86.430-78 Vehicle failure.
      §86.431-78 Data submission.
      §86.432-78 Deterioration factor.
      §86.434-78 Testing by the Administrator.
      §86.435-78 Extrapolated emission values.
      §86.436-78 Additional service accumulation.
      §86.437-78 Certification.
      §86.438-78 Amendments to the application.
      §86.439-78 Alternative procedure for notification of additions and changes.
      §86.440-78 Maintenance of records.
      §86.441-78 Right of entry.
      §86.442-78 Denial, revocation, or suspension of certification.
      §86.443-78 Request for hearing.
      §86.444-78 Hearings on certification.
   
Subpart F -- Emission Regulations for 1978 and Later New Motorcycles; Test Procedures

      §86.501-78 Applicability.
      §86.502-78 Definitions.
      §86.503-78 Abbreviations.
      §86.504-78 Section numbering.
      §86.505-78 Introduction; structure of subpart.
      §86.508-78 Dynamometer.
      §86.509-90 Exhaust gas sampling system.
      §86.511-90 Exhaust gas analytical system.
      §86.513-87 Fuel and engine lubricant specifications.
      §86.513-90 Fuel and engine lubricant specifications.
      §86.513-94 Fuel and engine lubricant specifications.
      §86.514-78 Analytical gases.
      §86.515-78 EPA urban dynamometer driving schedule.
      §86.516-90 Calibrations, frequency and overview.
      §86.518-78 Dynamometer calibration.
      §86.519-78 Constant volume sampler calibration.
      §86.519-90 Constant volume sampler calibration.
      §86.521-90 Hydrocarbon analyzer calibration.
      §86.522-78 Carbon monoxide analyzer calibration.
      §86.523-78 Oxides of nitrogen analyzer calibration.
      §86.524-78 Carbon dioxide analyzer calibration.
      §86.526-90 Calibration of other equipment.
      §86.527-90 Test procedures, overview.
      §86.528-78 Transmissions.
      §86.529-78 Road load force and inertia weight determination.
      §86.529-98 Road load force and inertia weight determination.
      §86.530-78 Test sequence, general requirements.
      §86.531-78 Vehicle preparation.
      §86.532-78 Vehicle preconditioning.
      §86.535-90 Dynamometer procedure.
      §86.536-78 Engine starting and restarting.
      §86.537-90 Dynamometer test runs.
      §86.540-90 Exhaust sample analysis.
      §86.542-90 Records required.
      §86.544-90 Calculations; exhaust emissions.