Appendix A-DHEW Urban Dynamometer Driving Schedule.

Appendix B-Procedure for Dynamometer Road Horsepower Calibration. Appendix C-Constant Volume Sampler Flow Calibration.

Appendix D-Durability Driving Schedule.

AUTHORITY: The provisions of this Part 1201 issued under sec. 2, 81 Stat. 504; 42 U.S.C. 1857g(a).

SOURCE: The provisions of this Part 1201 appear at 35 F.R. 17288, Nov. 10, 1970, unless otherwise noted. Redesignated at 35 F.R. 19181, Dec. 18, 1970.

Subpart A-General Provisions

§ 1201.1 Definitions.

(a) As used in this part, all terms not defined herein shall have the meaning given them in the Act:

(1) "Act" means Title II of the Clean Air Act, as amended, 42 U.S.C. 1857f-1 (2) "Secretary" means the Secretary of Health, Education, and Welfare and any other officer or employee of the Department of Health, Education, and Welfare to whom the authority involved may be delegated.

(3) "Model year" means the production period of new motor vehicles or new motor vehicle engines designated by the calendar year in which such period ends: Provided, That if the manufacturer does not designate a production period the model year with respect to such vehicles or engines shall mean the 12-month period beginning January 1 of the year in which production begins.

(4) "Gross vehicle weight" means the manufacturer's gross weight rating.

(5) "Light duty vehicle" means any motor vehicle either designed primarily for transportation of property and rated at 6,000 pounds GVW or less or designed primarily for transportation of persons and having a capacity of 12 persons or less.

(6) "Heavy duty vehicle" means any motor vehicle either designed primarily for transportation of property and rated at more than 6,000 pounds GVW or designed primarily for transportation of persons and having a capacity of more than 12 persons.

(7) "Heavy duty engine" means any engine which the engine manufacturer could reasonably expect to be used for motive power in a heavy duty vehicle.

(8) "Off-road utility vehicle" means a light duty vehicle which incorporates special features for off-road operation such as four-wheel drive.

(9) "Motorcycle" means any light duty vehicle having a seat or saddle for the use of the rider and designed to travel on not more than three wheels (including any tricycle arrangement) in contact with the ground and weighing less than 1,500 pounds.

(10) "Vehicle curb weight" means the actual or the manufacturer's estimated weight of the vehicle in operational status with all standard equipment, and weight of fuel at nominal tank capacity, and the weight of optional equipment computed in accordance with § 1201.89 (g).

(11) "Loaded vehicle weight" means the vehicle curb weight of a light duty vehicle plus 300 pounds.

(12) "System" includes any motor vehicle engine modification which controls or causes the reduction of substances emitted from motor vehicles or motor vehicle engines.

(13) "Engine family" means the basic classification unit of a manufacturer's product line used for the purpose of test fleet selection and determined in accordance with § 1201.89 (a).

(14) "Engine-system combination" means an engine family-exhaust emission control system-fuel evaporative emission control system (where applicable) combination.

(15) "Fuel system" means the combination of fuel tank, fuel pump, fuel lines, and carburetor, or fuel injection components, and includes all fuel system vents and fuel evaporative emission control systems.

emissions"

means

(16) "Crankcase airborne substances emitted to the atmosphere from any portion of the crankcase ventilation or lubrication systems. (17) "Exhaust emissions" means substances emitted to the atmosphere from any opening downstream from the exhaust port of a motor vehicle engine.

(18) "Fuel evaporative emissions" means vaporized fuel emitted into the atmosphere from the fuel system of a motor vehicle.

(19) "Smoke" means the matter in exhaust emissions which obscures the transmission of light.

(20) "Hot soak loss" means fuel evaporative emissions during the 1-hour hot soak period which begins immediately after the engine is turned off.

(21) "Diurnal breathing loss" means fuel evaporative emissions as a result of the daily range in temperature to which the fuel system is exposed.

an

(22) "Running loss" means fuel evaporative emissions resulting from average trip in an urban area or the simulation of such a trip.

(23) "Tank fuel volume" means the volume of fuel in the fuel tank, prescribed to be 40 percent of nominal tank capacity rounded to the nearest whole U.S. gallon.

(24) "Maximum rated horsepower" means the maximum brake horsepower output of an engine as stated by the manufacturer in his sales and service literature and his application for certification under § 1201.51.

(25) "Rated speed" means the speed at which the manufacturer specifies the maximum rated horsepower of an engine.

(26) "Maximum rated torque" means the maximum torque produced by an engine as stated by the manufacturer in his sales and service literature and his application for certification under § 1201.51.

(27) "Opacity" means the fraction of a beam of light, expressed in percent, which fails to penetrate a plume of smoke.

(28) Zero (0) miles means that point after initial engine starting (not to exceed 10 miles of vehicle operation) at which adjustments are completed.

(29) Zero (0) hours means that point after initial engine starting (not to exceed 1 hour of engine operation) at which adjustments are completed.

(30) "Calibrating gas" means a gas of known concentration which is used to

Accel.-Acceleration.

ASTM-American Society for Testing and
Materials.

BHP-Brake Horsepower.
C.f.h.-Cubic feet per hour.
CO Carbon Dioxide.
CO-Carbon Monoxide.

Conc.-Concentration.

CT-Closed Throttle.

C.f.m.-Cubic feet per minute.
Cu.in.-Cubic inch(es).
Decel. Deceleration.
EP-End Point.

Evap.-Evaporated.

F.-Fahrenheit.

FL-Full Load.

Gal.-U.S. Gallon (s).
Gm.-Gram(s).

GVW-Gross Vehicle Weight.
HC-Hydrocarbon(s).
Hg-Mercury.
Hi.-High.

HP.-Horsepower.

IBP-Initial Boiling Point.
ID-Internal Diameter.
Lb.-Pound(s).
Lb.-ft.-Pound-feet.
Max.-Maximum.

Min.-Minimum; also minute(s).
MI.-Milliliter(s).

M.p.h.-Miles per hour.

Mm.-Millimeter(s).

Mv.-Millivolt(s).

N-Nitrogen.

No.-Number.
Pb-Lead.

P.p.m.-Parts per million by volume.
P.s.i.-Pounds per square inch.
P.s.i.g.-Pounds per square inch gauge.
PTA-Part Throttle Accel.

PTD-Part Throttle Decel.
R-Rankine.

R.p.m.-Revolutions per minute.
RS-Rated Speed.

RVP-Reid Vapor Pressure.

S.A.E. Society of Automotive Engineers. Sec. Second (s).

Sp.-Speed.

SS Stainless Steel.

T-Torque.

TEL-Tetraethyl Lead.

TML-Tetramethyl Lead.

V.-Volts.

Vs.-Versus.

WOT-Wide Open Throttle. Wt.-Weight.

'-Feet.

"-Inches. '-Degrees. %-Percent.

§ 1201.3

General standards: increase in emissions; unsafe conditions.

(a) (1) Every new motor vehicle or new motor vehicle engine manufactured for sale, sold, offered for sale, introduced or delivered for introduction into commerce, or imported into the United States for sale or resale which is subject to any of the standards prescribed in this part shall be covered by a certificate of conformity issued pursuant to Subpart F of this part.

(2) No heavy duty vehicle manufacturer shall take any of the actions specified in section 203 (a) (1) of the Act with respect to any gasoline fueled or diesel powered heavy duty vehicle which uses an engine which has not been certified as meeting applicable standards. Such manufacturer shall provide to the Secretary prior to the beginning of each model year a statement signed by an authorized representative which includes the following information:

(i) A description of the vehicles which will be produced subject to this section; (ii) Identification of the engines used in the vehicles;

(iii) Projected sales data on each vehicle-engine combination;

(iv) A statement that the engines will not be modified by the vehicle manufacturer or a detailed specification of any changes which will be made. Changes made solely for the purpose of mounting an engine in a vehicle need not be included.

(b) (1) Any system installed on or incorporated in a new motor vehicle or new motor vehicle engine to enable such vehicle to conform to standards imposed by this part:

(i) Shall not in its operation or function cause the emission into the ambient air of any noxious or toxic substance that would not be emitted in the operation of such vehicle or engine without such system, except as specifically permitted by regulation; and

(ii) Shall not in its operation, function, or malfunction result in any unsafe condition endangering the motor vehicle, its occupants, or persons or property in close proximity to the vehicle.

(2) Every manufacturer of new motor vehicles or new motor vehicle engines subject to any of the standards imposed

by this part shall, prior to taking any of the actions specified in section 203(a) (1) of the Act, test or cause to be tested motor vehicles or motor vehicle engines in accordance with good engineering practice to ascertain that such test vehicles or engines will meet the requirements of this section for the lifetime of the vehicle or engine as defined in § 1201.92, § 1201.113, or § 1201.133, as appropriate.

§1201.4 Labeling.

(a) (1) The manufacturer of any light duty motor vehicle subject to any of the standards prescribed in this part shall, at the time of manufacture, affix a permanent, legible label, of the type and in the manner described below, containing the information hereinafter provided, to all production models of such vehicles available for sale to the public and covered by a certificate of conformity under § 1201.55 (a).

(2) A plastic or metal label shall be welded, riveted, or otherwise permanently attached in a readily visible position in the engine compartment.

(3) The label shall be affixed by the vehicle manufacturer, who has been issued the certificate of conformity for such vehicle, in such a manner that it cannot be removed without destroying or defacing the label, and shall not be affixed to any equipment which is easily detached from such vehicle.

(4) The label shall contain the following information lettered in the English language in block letters and numerals, which shall be of a color that contrasts with the background of the label:

(i) The label heading: Vehicle Emission Control Information;

(ii) Full corporate name and trademark of manufacturer;

(iii) Engine displacement (in cubic inches) and engine family identification; (iv) Engine tuneup specifications and adjustments, as recommended by the manufacturer, including idle speed, ignition timing, and the idle air-fuel mixture setting procedure and valve (e.g. idle CO, idle air-fuel ratio, idle speed drop). These specifications should indicate the proper transmission position during tuneup and what accessories (e.g., air-conditioner), if any, should be in operation;

(v) The statement: "This Vehicle Conforms to U.S. Dept. of H.E.W. Regulations Applicable to (insert current year) Model Year New Motor Vehicles."

(b) The manufacturer of any heavy duty gasoline fueled engine shall, at the time of manufacture, affix a permanent, legible plastic or metal label, containing the information hereinafter provided to all production models of such engines available for sale to the public, and covered by a certificate of conformity under § 1201.55(a). The label shall be affixed at such a location that it will be readily accessible for inspection after the engine is installed in a vehicle and shall read as follows:

ENGINE EMISSION CERTIFICATION

This engine is, in all material respects, of substantially the same construction as test engines certified by the U.S. Department of Health, Education, and Welfare as conforming to Federal regulations pertaining to crankcase and exhaust emissions.

Engine family identification and engine displacement (in cubic inches) Date of manufacture

Name of manufacturer

(Month and year)

(The information applicable to each engine is to be inserted on the appropriate line.)

(c) The manufacturer of any heavy duty diesel engine shall, at the time of manufacture, affix a permanent, legible plastic or metal label containing the information hereinafter provided to all production models of such engines available for sale to the public, and covered by a certificate of conformity under § 1201.55 (a). The label shall be affixed at such a location that it will be readily accessible for inspection after the engine is installed in a vehicle and shall read as follows:

ENGINE SMOKE EMISSION CERTIFICATION

This engine is, in all material respects, of substantially the same construction as test engines certified by the U.S. Department of Health, Education, and Welfare as conforming to Federal regulations pertaining to exhaust smoke emission.

Engine family identification and model

Date of manufacture

(Month and year)

Name of manufacturer (The information applicable to each engine is to be inserted on the appropriate line.)

(d) The provisions of this section shall not prevent a manufacturer from also reciting on the label that such vehicle or engine conforms to any applicable State emission standards for new motor