40 CFR Appendix V to Part 86, The Standard Road Cycle (SRC)

Appendix V to Part 86 - The Standard Road Cycle (SRC)

1. The standard road cycle (SRC) is a mileage accumulation cycle that may be used for any vehicle which is covered by the applicability provisions of § 86.1801. The vehicle may be run on a track or on a mileage accumulation dynamometer.

2. The cycle consists of 7 laps of a 3.7 mile course. The length of the lap may be changed to accommodate the length of the service-accumulation track.

Description of the SRC

Lap Description Typical accel rate
(MPH/s)
1 (start engine) Idle 10 sec 0
1 Mod accel to 30 MPH 4
1 Cruise at 30 MPH for 1/4 lap 0
1 Mod. decel to 20 MPH −5
1 Mod accel to 30 MPH 4
1 Cruise at 30 MPH for 1/4 lap 0
1 Mod. decel to stop −5
1 Idle 5 sec 0
1 Mod accel to 35 MPH 4
1 Cruise at 35 MPH for 1/4 lap 0
1 Mod. decel to 25 MPH −5
1 Mod accel to 35 MPH 4
1 Cruise at 35 MPH for 1/4 lap 0
1 Mod. decel to stop −5
2 Idle 10 sec 0
2 Mod accel to 40 MPH 3
2 Cruise at 40 MPH for 1/4 lap 0
2 Mod. decel to 30 MPH −5
2 Mod accel to 40 MPH 3
2 Cruise at 40 MPH for 1/4 lap 0
2 Mod. decel to stop −5
2 Idle 5 sec 0
2 Mod accel to 45 MPH 3
2 Cruise at 45 MPH for 1/4 lap 0
2 Mod. decel to 35 MPH −5
2 Mod accel to 45 MPH 3
2 Cruise at 45 MPH for 1/4> lap 0
2 Mod. decel to stop −5
3 Idle 10 sec 0
3 Hard accel to 55 MPH 4
3 Cruise at 55 MPH for 1/4 lap 0
3 Mod. decel to 45 MPH −5
3 Mod accel to 55 MPH 2
3 Cruise at 55 MPH for 1/4 lap 0
3 Mod. decel to 45 MPH −5
3 Mod accel to 60 MPH 2
3 Cruise at 60 MPH for 1/4 lap 0
3 Mod. decel to 50 MPH −5
3 Mod. accel to 60 MPH 2
3 Cruise at 60 MPH for 1/4 lap 0
3 Mod. decel to stop −4
4 Idle 10 sec 0
4 Hard accel to 80 MPH 3
4 Coastdown to 70 MPH −1
4 Cruise at 70 MPH for 1/2 Lap 0
4 Mod. decel to 50 MPH −3
4 Mod accel to 65 MPH 2
4 Cruise at 65 MPH for 1/2 lap 0
4 Mod. decel to 50 MPH −3
5 Mod accel to 75 MPH 1
5 Cruise at 75 MPH for 1/2 lap 0
5 Mod. decel to 50 MPH −3
5 Lt. accel to 70 MPH 1
5 Cruise at 70 MPH for 1/2 lap 0
5 Mod. decel 50 MPH −3
6 Mod accel to 70 MPH 2
6 Coastdown to 60 MPH −1
6 Cruise at 60 MPH for 1/2 lap 0
6 Mod. decel to 50 MPH −4
6 Mod. accel to 65 MPH 1
6 Cruise at 65 MPH for 1/2 lap 0
6 Mod. decel to stop −4
7 Idle 45 sec 0
7 Hard accel to 55 MPH 4
7 Cruise at 55 MPH for 1/4 lap 0
7 Mod. decel to 40 MPH −5
7 Mod. accel to 55 MPH 2
7 Cruise at 55 MPH for 1/4 lap 0
7 Mod. decel to 40 MPH −5
7 Mod. accel to 50 MPH 2
7 Cruise at 50 MPH for 1/4 lap 0
7 Mod. decel to 40 MPH −5
7 Mod. accel to 50 MPH 2
7 Cruise at 50 MPH for 1/4 lap 0
7 Mod. decel to stop −5

The standard road cycle is represented graphically in the following figure:

[ 71 FR 2837, Jan. 17, 2006]

This is a list of United States Code sections, Statutes at Large, Public Laws, and Presidential Documents, which provide rulemaking authority for this CFR Part.

This list is taken from the Parallel Table of Authorities and Rules provided by GPO [Government Printing Office].

It is not guaranteed to be accurate or up-to-date, though we do refresh the database weekly. More limitations on accuracy are described at the GPO site.


United States Code
U.S. Code: Title 42 - THE PUBLIC HEALTH AND WELFARE

§ 7401 - Congressional findings and declaration of purpose

§ 7402 - Cooperative activities

§ 7403 - Research, investigation, training, and other activities

§ 7404 - Research relating to fuels and vehicles

§ 7405 - Grants for support of air pollution planning and control programs

§ 7406 - Interstate air quality agencies; program cost limitations

§ 7407 - Air quality control regions

§ 7408 - Air quality criteria and control techniques

§ 7409 - National primary and secondary ambient air quality standards

§ 7410 - State implementation plans for national primary and secondary ambient air quality standards

§ 7411 - Standards of performance for new stationary sources

§ 7412 - Hazardous air pollutants

§ 7413 - Federal enforcement

§ 7414 - Recordkeeping, inspections, monitoring, and entry

§ 7415 - International air pollution

§ 7416 - Retention of State authority

§ 7417 - Advisory committees

§ 7418 - Control of pollution from Federal facilities

§ 7419 - Primary nonferrous smelter orders

§ 7420 - Noncompliance penalty

§ 7421 - Consultation

§ 7422 - Listing of certain unregulated pollutants

§ 7423 - Stack heights

§ 7424 - Assurance of adequacy of State plans

§ 7425 - Measures to prevent economic disruption or unemployment

§ 7426 - Interstate pollution abatement

§ 7427 - Public notification

§ 7428 - State boards

§ 7429 - Solid waste combustion

§ 7430 - Emission factors

§ 7431 - Land use authority

§ 7450 to 7459 - Repealed. Pub. L. 101–549, title VI, § 601, Nov. 15, 1990, 104 Stat. 2648

§ 7470 - Congressional declaration of purpose

§ 7471 - Plan requirements

§ 7472 - Initial classifications

§ 7473 - Increments and ceilings

§ 7474 - Area redesignation

§ 7475 - Preconstruction requirements

§ 7476 - Other pollutants

§ 7477 - Enforcement

§ 7478 - Period before plan approval

§ 7479 - Definitions

§ 7491 - Visibility protection for Federal class I areas

§ 7492 - Visibility

§ 7501 - Definitions

§ 7502 - Nonattainment plan provisions in general

§ 7503 - Permit requirements

§ 7504 - Planning procedures

§ 7505 - Environmental Protection Agency grants

§ 7505a - Maintenance plans

§ 7506 - Limitations on certain Federal assistance

§ 7506a - Interstate transport commissions

§ 7507 - New motor vehicle emission standards in nonattainment areas

§ 7508 - Guidance documents

§ 7509 - Sanctions and consequences of failure to attain

§ 7509a - International border areas

§ 7511 - Classifications and attainment dates

§ 7511a - Plan submissions and requirements

§ 7511b - Federal ozone measures

§ 7511c - Control of interstate ozone air pollution

§ 7511d - Enforcement for Severe and Extreme ozone nonattainment areas for failure to attain

§ 7511e - Transitional areas

§ 7511f - NOx and VOC study

§ 7512 - Classification and attainment dates

§ 7512a - Plan submissions and requirements

§ 7513 - Classifications and attainment dates

§ 7513a - Plan provisions and schedules for plan submissions

§ 7513b - Issuance of RACM and BACM guidance

§ 7514 - Plan submission deadlines

§ 7514a - Attainment dates

§ 7515 - General savings clause

§ 7521 - Emission standards for new motor vehicles or new motor vehicle engines

§ 7522 - Prohibited acts

§ 7523 - Actions to restrain violations

§ 7524 - Civil penalties

§ 7525 - Motor vehicle and motor vehicle engine compliance testing and certification

§ 7541 - Compliance by vehicles and engines in actual use

§ 7542 - Information collection

§ 7543 - State standards

§ 7544 - State grants

§ 7545 - Regulation of fuels

§ 7546 - Renewable fuel

§ 7547 - Nonroad engines and vehicles

§ 7548 - Study of particulate emissions from motor vehicles

§ 7549 - High altitude performance adjustments

§ 7550 - Definitions

§ 7551 - Omitted

§ 7552 - Motor vehicle compliance program fees

§ 7553 - Prohibition on production of engines requiring leaded gasoline

§ 7554 - Urban bus standards

§ 7571 - Establishment of standards

§ 7572 - Enforcement of standards

§ 7573 - State standards and controls

§ 7574 - Definitions

§ 7581 - Definitions

§ 7582 - Requirements applicable to clean-fuel vehicles

§ 7583 - Standards for light-duty clean-fuel vehicles

§ 7584 - Administration and enforcement as per California standards

§ 7585 - Standards for heavy-duty clean-fuel vehicles (GVWR above 8,500 up to 26,000 lbs.)

§ 7586 - Centrally fueled fleets

§ 7587 - Vehicle conversions

§ 7588 - Federal agency fleets

§ 7589 - California pilot test program

§ 7590 - General provisions

§ 7601 - Administration

§ 7602 - Definitions

§ 7603 - Emergency powers

§ 7604 - Citizen suits

§ 7605 - Representation in litigation

§ 7606 - Federal procurement

§ 7607 - Administrative proceedings and judicial review

§ 7608 - Mandatory licensing

§ 7609 - Policy review

§ 7610 - Other authority

§ 7611 - Records and audit

§ 7612 - Economic impact analyses

§ 7613 - Repealed. Pub. L. 101–549, title VIII, § 803, Nov. 15, 1990, 104 Stat. 2689

§ 7614 - Labor standards

§ 7615 - Separability

§ 7616 - Sewage treatment grants

§ 7617 - Economic impact assessment

§ 7618 - Repealed. Pub. L. 101–549, title I, § 108(q), Nov. 15, 1990, 104 Stat. 2469

§ 7619 - Air quality monitoring

§ 7620 - Standardized air quality modeling

§ 7621 - Employment effects

§ 7622 - Employee protection

§ 7623 - Repealed. Pub. L. 96–300, § 1(c), July 2, 1980, 94 Stat. 831

§ 7624 - Cost of vapor recovery equipment

§ 7625 - Vapor recovery for small business marketers of petroleum products

§ 7625-1

§ 7625a - Statutory construction

§ 7626 - Authorization of appropriations

§ 7627 - Air pollution from Outer Continental Shelf activities

§ 7628 - Demonstration grant program for local governments

§ 7641 - Noise abatement

§ 7642 - Authorization of appropriations

§ 7651 - Findings and purposes

§ 7651a - Definitions

§ 7651b - Sulfur dioxide allowance program for existing and new units

§ 7651c - Phase I sulfur dioxide requirements

§ 7651d - Phase II sulfur dioxide requirements

§ 7651e - Allowances for States with emissions rates at or below 0.80 lbs/mmBtu

§ 7651f - Nitrogen oxides emission reduction program

§ 7651g - Permits and compliance plans

§ 7651h - Repowered sources

§ 7651i - Election for additional sources

§ 7651j - Excess emissions penalty

§ 7651k - Monitoring, reporting, and recordkeeping requirements

§ 7651l - General compliance with other provisions

§ 7651m - Enforcement

§ 7651n - Clean coal technology regulatory incentives

§ 7651o - Contingency guarantee, auctions, reserve

§ 7661 - Definitions

§ 7661a - Permit programs

§ 7661b - Permit applications

§ 7661c - Permit requirements and conditions

§ 7661d - Notification to Administrator and contiguous States

§ 7661e - Other authorities

§ 7661f - Small business stationary source technical and environmental compliance assistance program

§ 7671 - Definitions

§ 7671a - Listing of class I and class II substances

§ 7671b - Monitoring and reporting requirements

§ 7671c - Phase-out of production and consumption of class I substances

§ 7671d - Phase-out of production and consumption of class II substances

§ 7671e - Accelerated schedule

§ 7671f - Exchange authority

§ 7671g - National recycling and emission reduction program

§ 7671h - Servicing of motor vehicle air conditioners

§ 7671i - Nonessential products containing chlorofluorocarbons

§ 7671j - Labeling

§ 7671k - Safe alternatives policy

§ 7671l - Federal procurement

§ 7671m - Relationship to other laws

§ 7671n - Authority of Administrator

§ 7671o - Transfers among Parties to Montreal Protocol

§ 7671p - International cooperation

§ 7671q - Miscellaneous provisions

Title 40 published on 2015-08-22

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 40 CFR Part 86 after this date.

  • 2017-03-22; vol. 82 # 54 - Wednesday, March 22, 2017
    1. 82 FR 14671 - Notice of Intention To Reconsider the Final Determination of the Mid-Term Evaluation of Greenhouse Gas Emissions Standards for Model Year 2022-2025 Light Duty Vehicles
      GPO FDSys XML | Text
      DEPARTMENT OF TRANSPORTATION, ENVIRONMENTAL PROTECTION AGENCY, National Highway Traffic Safety Administration
      Notice of intent.
      March 22, 2017.
      49 CFR Parts 523, 531, 533, 536 and 537