# 40 CFR 86.529-98 - Road load force and inertia weight determination.

There are 4 Updates appearing in the Federal Register for 40 CFR 86. Select the tab below to view, or View eCFR (GPOAccess)
§ 86.529-98
(a) (1) Road load as a function of speed is given by the following equation:
F = A CV2
(2) The values for coefficients A and C and the test inertia are given in Figure F98-9 of this section. Velocity V is in km/h and force (F) is in newtons. The forces given by the equation in paragraph (a)(1) of this section shall be simulated to the best ability of the equipment being used.
(b) The inertia given in Figure F98-9 shall be used. Motorcycles with loaded vehicle mass outside these limits shall be tested at an equivalent inertial mass and road load force specified by the Administrator. Figure F98-9 follows:
Figure F98-9
Loaded vehicle mass (kg) Equivalent inertial mass (kg) Force coefficients A (nt) C (nt/(km/h)2) Force at 65 km/h (nt) 70 to 60 km/h coastdown calibration times Target time (sec) Allowable tolerance Longest time (sec) Shortest time (sec)
95-105 100 0.0 .0224 94.8 2.95 3.1 2.8
106-115 110 0.82 .0227 96.8 3.18 3.3 3.0
116-125 120 1.70 .0230 98.8 3.39 3.6 3.2
126-135 130 2.57 .0233 100.9 3.60 3.8 3.4
136-145 140 3.44 .0235 102.9 3.80 4.0 3.6
146-155 150 4.32 .0238 104.9 3.99 4.2 3.8
156-165 160 5.19 .0241 107.0 4.10 4.4 4.0
166-175 170 6.06 .0244 109.0 4.36 4.6 4.2
176-185 180 6.94 .0246 111.0 4.53 4.7 4.3
186-195 190 7.81 .0249 113.1 4.69 4.9 4.5
196-205 200 8.69 .0252 115.1 4.85 5.1 4.6
206-215 210 9.56 .0255 117.1 5.00 5.2 4.8
216-225 220 10.43 .0257 119.2 5.15 5.4 4.9
226-235 230 11.31 .0260 121.2 5.30 5.5 5.1
236-245 240 12.18 .0263 123.2 5.43 5.7 5.2
246-255 250 13.06 .0266 125.3 5.57 5.8 5.4
256-265 260 13.93 .0268 127.3 5.70 5.9 5.5
266-275 270 14.80 .0271 129.3 5.82 6.1 5.6
276-285 280 15.68 .0274 131.4 5.95 6.2 5.7
286-295 290 16.55 .0277 133.4 6.06 6.3 5.8
296-305 300 17.43 .0279 135.4 6.18 6.4 6.0
306-315 310 18.30 .0282 137.5 6.29 6.5 6.1
316-325 320 19.17 .0285 139.5 6.40 6.6 6.2
326-335 330 20.05 .0288 141.6 6.50 6.7 6.3
336-345 340 20.92 .0290 143.6 6.60 6.8 6.4
346-355 350 21.80 .0293 145.6 6.70 6.9 6.5
356-365 360 22.67 .0296 147.7 6.80 7.0 6.6
366-375 370 23.54 .0299 149.7 6.89 7.1 6.7
376-385 380 24.42 .0301 151.7 6.98 7.2 6.8
Code of Federal Regulations - Page 720
386-395 390 25.29 .0304 153.8 7.07 7.3 6.9
396-405 400 26.17 .0307 155.8 7.16 7.4 6.9
406-415 410 27.04 .0310 157.8 7.24 7.5 7.0
416-425 420 27.91 .0312 159.9 7.33 7.6 7.1
426-435 430 28.79 .0315 161.9 7.41 7.6 7.2
436-445 440 29.66 .0317 163.7 7.49 7.7 7.3
446-455 450 30.54 .0318 164.9 7.61 7.8 7.4
456-465 460 31.41 .0319 166.0 7.73 8.0 7.5
466-475 470 32.28 .0319 167.1 7.84 8.1 7.6
476-485 480 33.16 .0320 168.3 7.95 8.2 7.7
486-495 490 34.03 .0320 169.4 8.06 8.3 7.8
496-505 500 34.90 .0321 170.5 8.17 8.4 7.9
506-515 510 35.78 .0322 171.7 8.28 8.5 8.0
516-525 520 36.65 .0322 172.8 8.39 8.6 8.2
526-535 530 37.53 .0323 173.9 8.49 8.7 8.3
536-545 540 38.40 .0323 175.1 8.60 8.8 8.4
546-555 550 39.27 .0324 176.2 8.70 9.0 8.5
556-565 560 40.15 .0325 177.3 8.80 9.1 8.6
566-575 570 41.02 .0325 178.5 8.90 9.2 8.7
576-585 580 41.90 .0326 179.6 9.00 9.3 8.8
586-595 590 42.77 .0327 180.8 9.10 9.4 8.9
596-605 600 43.64 .0327 181.9 9.19 9.5 8.9
606-615 610 44.52 .0328 183.0 9.29 9.5 9.0
616-625 620 45.39 .0328 184.2 9.38 9.6 9.1
626-635 630 46.27 .0329 185.3 9.47 9.7 9.2
636-645 640 47.14 .0330 186.4 9.56 9.8 9.3
646-655 650 48.01 .0330 187.6 9.65 9.9 9.4
565-665 660 48.89 .0331 188.7 9.74 10.0 9.5
666-675 670 49.76 .0332 189.8 9.83 10.1 9.6
676-685 680 50.64 .0332 191.0 9.92 10.2 9.7
686-695 690 51.51 .0333 192.1 10.01 10.3 9.8
696-705 700 52.38 .0333 193.2 10.09 10.4 9.8
706-715 710 53.26 .0334 194.4 10.17 10.4 9.9
716-725 720 54.13 .0335 195.5 10.26 10.5 10.0
726-735 730 55.01 .0335 196.6 10.34 10.6 10.1
736-745 740 55.88 .0336 197.8 10.42 10.7 10.2
746-755 750 56.75 .0336 198.9 10.50 10.8 10.2
756-765 760 57.63 .0337 200.1 10.58 10.9 10.3
766-775 770 58.50 .0338 201.2 10.66 10.9 10.3
776-785 780 59.38 .0338 203.3 10.74 11.0 10.4
786-795 790 60.25 .0339 204.5 10.82 11.1 10.5
796-805 800 61.12 .0339 205.6 10.91 11.2 10.6
806-815 810 62.00 .0340 206.7 10.99 11.3 10.7
816-825 820 62.87 .0341 207.9 11.07 11.4 10.8
826-835 830 63.75 .0341 209.0 11.15 11.5 10.8
836-845 840 64.62 .0342 210.1 11.24 11.5 10.9
846-855 850 65.49 .0343 211.3 11.32 11.6 11.0
856-865 860 66.37 .0343 212.4 11.40 11.7 11.1
866-873 870 67.24 .0344 213.5 11.48 11.8 11.2
(c) The dynamometer shall be adjusted to reproduce the specified road load as determined by the most recent calibration. Alternatively, the actual vehicle road load can be measured and duplicated:
(1) Make at least 5 replicate coastdowns in each direction from 70 to 60 km/h on a smooth, level track under balanced wind conditions. The driver must have a mass of 80 ±10 kg and be in the normal driving position. Record the coastdown time.
(2) Average the coastdown times. Adjust the dynamometer load so that the coastdown time is duplicated with the vehicle and driver on the dynamometer.
(3) Alternate procedures may be used if approved in advance by the Administrator.
[63 FR 11849, Mar. 11, 1998]

Title 40 published on 2012-07-01

The following are only the Rules published in the Federal Register after the published date of Title 40.

For a complete list of all Rules, Proposed Rules, and Notices view the Rulemaking tab.

• 2012-11-15; vol. 77 # 221 - Thursday, November 15, 2012
1. 77 FR - 2017 and Later Model Year Light-Duty Vehicle Greenhouse Gas Emissions and Corporate Average Fuel Economy Standards
GPO FDSys XML | Text
DEPARTMENT OF TRANSPORTATION, ENVIRONMENTAL PROTECTION AGENCY, National Highway Traffic Safety Administration
40 CFR Parts 85, 86, and 600

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.C. : 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

§ 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

§ 7428 - State boards

§ 7429 - Solid waste combustion

§ 7430 - Emission factors

§ 7431 - Land use authority

§ 7450 to 7459 - Repealed.

§ 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 - NO

§ 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

§ 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.

§ 7614 - Labor standards

§ 7615 - Separability

§ 7616 - Sewage treatment grants

§ 7617 - Economic impact assessment

§ 7618 - Repealed.

§ 7619 - Air quality monitoring

§ 7620 - Standardized air quality modeling

§ 7621 - Employment effects

§ 7622 - Employee protection

§ 7623 - Repealed.

§ 7624 - Cost of vapor recovery equipment

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

42 USC § 7625–1 - Exemptions for certain territories

§ 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

42 USC § -

§ 7651m - Enforcement

§ 7651n - Clean coal technology regulatory incentives

42 USC § -

§ 7661 - Definitions

§ 7661a - Permit programs

§ 7661b - Permit applications

§ 7661c - Permit requirements and conditions

§ 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

42 USC § -

§ 7671m - Relationship to other laws

§ 7671n - Authority of Administrator

42 USC § -

§ 7671p - International cooperation

§ 7671q - Miscellaneous provisions

Title 40 published on 2012-07-01

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

• 2013-01-25; vol. 78 # 17 - Friday, January 25, 2013
1. 78 FR 5347 - Denial of Reconsideration Petition on Model Year 2012-2016 Light Duty Vehicle Greenhouse Gas Emissions Standards
GPO FDSys XML | Text
ENVIRONMENTAL PROTECTION AGENCY
Denial of petition for reconsideration.
This action is effective on January 25, 2013.
40 CFR Parts 85, 86, 600