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UN Regulation No. 41
Motorcycle Noise

Uniform Provisions Concerning the Approval of Motor Cycles with regard to Noise

The proposal for the 04 series of amendments, adopted at the June 2011 Forum session, will be posted as Revision 2 to the regulation pursuant to the completion of administrative formalities.

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Revisions and Amendments
Series of Amendments and Supplements

Application of the Regulation

Contracting Parties applying UN R41

Related News and Information

4 Feb 2016 4 Feb 2016 | Adopted texts from the June WP.29 session now binding on Contracting Parties Uniform Provisions Concerning the Approval of Category L2, L4 and L5 Vehicles with Regard to Noise Three-Wheeled Cycle Noise Three-Wheeled Cycle Noise UN Regulation No. 9 UN R9, Uniform Provisions Concerning the Approval of Vehicles with regard to Safety-belt Anchorages, ISOFIX Anchorages Systems and ISOFIX Top Tether Anchorages Safety-Belt/ISOFIX Anchorages Safety-Belt and ISOFIX Anchorages UN Regulation No. 14 UN R14, Uniform Provisions Concerning the Approval of Vehicles with regard to the Protection of the Occupants of the Cab of a Commercial Vehicles Commercial Vehicle Cabs Commercial Vehicle Cab Occupant Protection UN Regulation No. 29 UN R29, Uniform Provisions Concerning the Approval of Motor Cycles with regard to Noise The proposal for the 04 series of amendments, adopted at the June 2011 Forum session, will be posted as Revision 2 to the regulation pursuant to the completion of administrative formalities. Motorcycle Noise Motorcycle Noise UN Regulation No. 41 UN R41, Uniform provisions concerning the measures to be taken against the emission of gaseous and particulate pollutants from compression-ignition engines and positive ignition engines for use in vehicles Diesel/CNG/LNG Engine Emissions Diesel and CNG/LNG Engine Emissions UN Regulation No. 49 UN R49, Uniform Provisions Concerning the Approval of Motor Vehicles having at least Four Wheels with regard to their Noise Emissions Vehicle Noise Vehicle Noise Emissions UN Regulation No. 51 UN R51, Uniform Provisions Concerning the Approval of Pneumatic Tyres for Commercial Vehicles and their Trailers CV Tires Commercial Vehicle Tyres UN Regulation No. 54 UN R54, Uniform Provisions Concerning the Approval of Two-wheeled Mopeds with regard to Noise Moped Noise Two-wheeled Moped Noise UN Regulation No. 63 UN R63, Uniform Provisions Concerning the Approval of Seats of Large Passenger Vehicles and of these Vehicles with regard to the Strength of the Seats and their Anchorages Coach Seat Strength Seat Strength and Seat Anchorages for Large Passenger Vehicles UN Regulation No. 80 UN R80, Uniform Provisions Concerning the Approval of Vehicles with regard to the Emission of Pollutants According to Engine Fuel Requirements Together with R49, Regulation 83 addresses vehicle emissions. R83 covers emissions from all light vehicles (M1/N1) regardless of engine type and from heavier vehicles only if equipped with a gasoline engine. Under certain circumstances, R83 or R49 can apply to light vehicle CNG/LPG engines as well as to medium passenger and commercial vehicles (M2/N2) equipped with diesel engines. R83 also contains provisions specific to hybrid variations of the vehicles under its purview. Motor Vehicle Emissions Motor Vehicle Emissions UN Regulation No. 83 UN R83, Uniform Provisions Concerning the Approval of Vehicles with regard to the Protection of the Occupants in the Event of a Lateral Collision This regulation applies to the lateral collision behavior of the structure of the passenger compartment of M1 and N1 categories of vehicles where the "R" point of the lowest seat is not more than 700 mm from ground level when the unladen vehicle plus 100 kg (i.e., the mass of a side impact dummy plus instrumentation) is at rest. Lateral Collision Protection Occupant Protection in Lateral Collisions UN Regulation No. 95 UN R95, Uniform provisions concerning the approval of vehicles with regard to specific requirements for the electric power train Electric Powertrain Vehicles Construction and Safety of Electric Powertrains UN Regulation No. 100 UN R100, Uniform Provisions Concerning the Approval of Passenger Cars Powered by an Internal Combustion Engine Only, or Powered by a Hybrid Electric Power Train with Regard to the Measurement of the Emission of Carbon Dioxide and Fuel Consumption and/or the Measurement of Electric Energy Consumption and Electric Range, and of Categories M1 and N1 Vehicles Powered by an Electric Power Train Only with Regard to the Measurement of Electric Energy Consumption and Electric Range CO2 Emissions/Fuel Consumption Carbon Dioxide Emissions and Fuel/Energy Consumption UN Regulation No. 101 UN R101, Uniform Provisions Concerning the Approval for the Production of Retreaded Pneumatic Tyres for Commercial Vehicles and their Trailers CV Retreaded Tires Retreaded Tires for Commercial Vehicles UN Regulation No. 109 UN R109, Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance Tire Noise, Wet Adhesion, and Rolling Resistance Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance UN Regulation No. 117 UN R117, Uniform provisions concerning the approval of motor vehicles and their components with regard to the safety- related performance of hydrogen-fuelled vehicles UN Regulation version of the HFCV Global Technical Regulation. (For information on the development of this regulation, please see the GTR No. 13: HFCV regulation pages). Hydrogen Fuel Cell Safety Hydrogen fuel cell vehicle safety UN Regulation No. 134 UN R134, Uniform provisions concerning the approval of vehicles with regard to their Pole Side Impact performance (PSI) This regulation transposed Global Technical Regulation No. 14 into the type-approval system under the 1958 Agreement. Pole Side Impact Pole side-impact protection UN Regulation No. 135 UN R135, Uniform provisions concerning the approval of vehicles of category L with regard to specific requirements for the electric power train This regulation (submitted as document WP.29/2015/69) was amended and adopted during the June 2015 session of the World Forum and is pending during the six-month administrative waiting period. Electric Motorcycle Safety Electric Motorcycle Power Train Safety UN Regulation No. 136 UN R136, Uniform Provisions Concerning the Approval of Vehicles with regard to the Seats, their Anchorages and any Head Restraints This Regulation applies to:
  1. Vehicles of categories M1 and N with regard to the strength of seats and their anchorages and with regard to their head restraints;
  2. Vehicles of categories M2 and M3 with regard to seats not covered by Regulation No. 80, in respect of the strength of seats and their anchorages, and in respect of their head restraints;
  3. Vehicles of category M1 with regard to the design of the rear parts of seat backs and the design of devices intended to protect the occupants from the danger resulting from the displacement of luggage in a frontal impact.

It does not apply to vehicles with regard to side-facing or rearward-facing seats, or to any head restraint fitted to these seats.

Strength of Seats Strength of Seats, Anchorages, and Head Restraints UN Regulation No. 17 UN R17, Uniform Provisions Concerning the Approval of Audible Warning Devices and of Motor Vehicles with regard to their Audible Signals Audible Warning Devices Audible Warning Devices and Signals UN Regulation No. 28 UN R28, and Uniform Provisions Concerning the Approval of Replacement Silencing Systems Replacement Silencing Systems Replacement Silencing Systems UN Regulation No. 59 UN R59
15 Jan 2016 15 Jan 2016 | India: After emission, NGT turns its gaze on vehicle noise rules ARAI and India Automotive Research Association of India and India Uniform Provisions Concerning the Approval of Audible Warning Devices and of Motor Vehicles with regard to their Audible Signals Audible Warning Devices Audible Warning Devices and Signals UN Regulation No. 28 UN R28, Uniform Provisions Concerning the Approval of Motor Cycles with regard to Noise The proposal for the 04 series of amendments, adopted at the June 2011 Forum session, will be posted as Revision 2 to the regulation pursuant to the completion of administrative formalities. Motorcycle Noise Motorcycle Noise UN Regulation No. 41 UN R41, Uniform Provisions Concerning the Approval of Motor Vehicles having at least Four Wheels with regard to their Noise Emissions Vehicle Noise Vehicle Noise Emissions UN Regulation No. 51 UN R51, Uniform Provisions Concerning the Approval of Replacement Silencing Systems Replacement Silencing Systems Replacement Silencing Systems UN Regulation No. 59 UN R59, Uniform Provisions Concerning the Approval of Two-wheeled Mopeds with regard to Noise Moped Noise Two-wheeled Moped Noise UN Regulation No. 63 UN R63, and Uniform Provisions Concerning the Approval of Non-Original Replacement Exhaust Silencing Systems (RESS) for Motorcycles, Mopeds and Three-wheeled Vehicles Motorcycle RESS Replacement Exhaust Silencing Systems for Motorcycles UN Regulation No. 92 UN R92
26 Nov 2015 26 Nov 2015 | Amendment 2 to Revision 2 of UN R41 posted IMMA International Motorcycle Manufacturers Association Uniform Provisions Concerning the Approval of Motor Cycles with regard to Noise The proposal for the 04 series of amendments, adopted at the June 2011 Forum session, will be posted as Revision 2 to the regulation pursuant to the completion of administrative formalities. Motorcycle Noise Motorcycle Noise UN Regulation No. 41 UN R41
5 Nov 2015 5 Nov 2015 | Supplement 2 to the 04 series of amendments to Regulation No. 41 binding Uniform Provisions Concerning the Approval of Motor Cycles with regard to Noise The proposal for the 04 series of amendments, adopted at the June 2011 Forum session, will be posted as Revision 2 to the regulation pursuant to the completion of administrative formalities. Motorcycle Noise Motorcycle Noise UN Regulation No. 41 UN R41
25 Feb 2015 25 Feb 2015 | WP.29 publishes acronyms and symbols listings Global Technical Regulation No. 4: Test Procedure for Compression-ignition (C.I.) Engines and Positive-ignition (P.I.) Engines Fuelled with Natural Gas (NG) or Liquefied Petroleum Gas (LPG) with regard to the Emission of Pollutants The Informal Group on Heavy-Duty Hybrids expects to deliver its final draft amendment to GTR No.4 at the January 2014 session of GRPE. This amendment would extend GTR No. 4 to include test procedures to evaluate hybrid heavy-duty vehicles. WHDC Worldwide Heavy-Duty Vehicle Emissions Certification Procedure GTR No. 4 GTR No. 4, Consolidated Resolution on the Construction of Vehicles (R.E.3) RE3 is an overarching document to facilitate harmonization and support the development of specific UN Regulations by providing uniform terms, references, and other guidance for general use. RE3 provides the guiding principles for the various rule categories by subsystem. The Resolution, via Annex 7 (including Amendment 4), provides definitions of vehicle categories, including in some cases, particular classes of vehicles within the categories. Annex 4 includes recommendations on market fuel quality and Annex 5 contains design principles for control systems of Advanced Driver Assistance Systems (ADAS). Consolidated Resolution RE3 Consolidated Resolution on the Construction of Vehicles United Nations Agreement Consolidated Resolution on the Construction of Vehicles, Special Resolution No. 1 Concerning the Common Definitions of Vehicle Categories, Masses and Dimensions (S.R. 1) Special Resolution No. 1 contains the definitions of common terms used in global technical regulations (GTR), including of the vehicle categories used in specifying the scope of a regulation. SR 1: Vehicle Categories Special Resolution No. 1: Vehicle Categories, Masses and Dimensions United Nations Agreement Special Resolution No. 1: Vehicle Categories, Masses and Dimensions, Uniform Provisions Concerning the Approval of Category L2, L4 and L5 Vehicles with Regard to Noise Three-Wheeled Cycle Noise Three-Wheeled Cycle Noise UN Regulation No. 9 UN R9, Uniform provisions concerning the approval of vehicles with regard to electromagnetic compatibility Electromagnetic Compatibility Electromagnetic Compatibility UN Regulation No. 10 UN R10, Uniform Provisions Concerning the Approval of Vehicles with Regard to the Protection of the Driver Against the Steering Mechanism in the Event of Impact Steering Mechanism Steering Mechanism Impact Protection UN Regulation No. 12 UN R12, Uniform Provisions Concerning the Approval of Vehicles of Categories M, N and O with regard to Braking Heavy-Duty Braking Heavy-Duty Vehicle Braking UN Regulation No. 13 UN R13, Uniform Provisions Concerning the Approval of Passenger Cars with regard to Braking Light Vehicle Braking Light-Duty Vehicle Braking UN Regulation No. 13-H UN R13-H, Uniform Provisions Concerning the Approval of Vehicles with regard to Safety-belt Anchorages, ISOFIX Anchorages Systems and ISOFIX Top Tether Anchorages Safety-Belt/ISOFIX Anchorages Safety-Belt and ISOFIX Anchorages UN Regulation No. 14 UN R14, Uniform Provisions Concerning the Approval of: I. Safety-belts, Restraint Systems, Child Restraint Systems and ISOFIX Child Restraint Systems for Occupants of Power-driven Vehicles II. Vehicles Equipped with Safety-belts, Safety-belt Reminders, Restraint Systems, Child Restraint Systems and ISOFIX Child Restraint Systems Safety belt systems Safety belts and related systems UN Regulation No. 16 UN R16, Uniform Provisions Concerning the Approval of Vehicles with regard to the Seats, their Anchorages and any Head Restraints This Regulation applies to:
  1. Vehicles of categories M1 and N with regard to the strength of seats and their anchorages and with regard to their head restraints;
  2. Vehicles of categories M2 and M3 with regard to seats not covered by Regulation No. 80, in respect of the strength of seats and their anchorages, and in respect of their head restraints;
  3. Vehicles of category M1 with regard to the design of the rear parts of seat backs and the design of devices intended to protect the occupants from the danger resulting from the displacement of luggage in a frontal impact.

It does not apply to vehicles with regard to side-facing or rearward-facing seats, or to any head restraint fitted to these seats.

Strength of Seats Strength of Seats, Anchorages, and Head Restraints UN Regulation No. 17 UN R17, Uniform Provisions Concerning the Approval of Protective Helmets and their Visors for Drivers and Passengers of Motor Cycles and Mopeds Helmets Helmets and Visors UN Regulation No. 22 UN R22, Uniform Provisions Concerning the Approval of Head Restraints (Headrests), Whether or Not Incorporated in Vehicle Seats Head Restraints Head Restraints UN Regulation No. 25 UN R25, Uniform Provisions Concerning the Approval of Pneumatic Tyres for Motor Vehicles and their Trailers This rule applies primarily, but not exclusively, to tires for use on passenger cars and their trailers. Pneumatic Tires Pneumatic Tires UN Regulation No. 30 UN R30, Uniform Provisions Concerning the Approval of Motor Cycles with regard to Noise The proposal for the 04 series of amendments, adopted at the June 2011 Forum session, will be posted as Revision 2 to the regulation pursuant to the completion of administrative formalities. Motorcycle Noise Motorcycle Noise UN Regulation No. 41 UN R41, Uniform Provisions Concerning the Approval of Restraining Devices for Child Occupants of Power-driven Vehicles ("Child Restraint System") Child Restraint Systems Child Restraint Systems UN Regulation No. 44 UN R44, Uniform provisions concerning the measures to be taken against the emission of gaseous and particulate pollutants from compression-ignition engines and positive ignition engines for use in vehicles Diesel/CNG/LNG Engine Emissions Diesel and CNG/LNG Engine Emissions UN Regulation No. 49 UN R49, Uniform Provisions Concerning the Approval of Motor Vehicles having at least Four Wheels with regard to their Noise Emissions Vehicle Noise Vehicle Noise Emissions UN Regulation No. 51 UN R51, Uniform Provisions Concerning the Approval of Pneumatic Tyres for Commercial Vehicles and their Trailers CV Tires Commercial Vehicle Tyres UN Regulation No. 54 UN R54, Uniform Provisions Concerning the Approval of Mechanical Coupling Components of Combinations of Vehicles Mechanical Couplings Mechanical Coupling Components UN Regulation No. 55 UN R55, Uniform Provisions Concerning the Approval of Two-wheeled Mopeds with regard to Noise Moped Noise Two-wheeled Moped Noise UN Regulation No. 63 UN R63, "Uniform provisions concerning the approval of vehicles with regard to their equipment which may include: a temporary- use spare unit, run-flat tyres. Spare Tires Temporary-use Tires UN Regulation No. 64 UN R64, Uniform Provisions Concerning the Approval of Pneumatic Tyres for Motor Cycles and Mopeds Motorcycle Tires Motorcycle and Moped Tires UN Regulation No. 75 UN R75, Uniform Provisions Concerning the Approval of Vehicles of Categories L1, L2, L3, L4, and L5 with regard to Braking Motorcycle Braking Motorcycle and Moped Braking UN Regulation No. 78 UN R78, Uniform Provisions Concerning the Approval of Vehicles with regard to Steering Equipment Steering Equipment Steering Equipment UN Regulation No. 79 UN R79, Uniform Provisions Concerning the Approval of Seats of Large Passenger Vehicles and of these Vehicles with regard to the Strength of the Seats and their Anchorages Coach Seat Strength Seat Strength and Seat Anchorages for Large Passenger Vehicles UN Regulation No. 80 UN R80, Uniform Provisions Concerning the Approval of Vehicles with regard to the Emission of Pollutants According to Engine Fuel Requirements Together with R49, Regulation 83 addresses vehicle emissions. R83 covers emissions from all light vehicles (M1/N1) regardless of engine type and from heavier vehicles only if equipped with a gasoline engine. Under certain circumstances, R83 or R49 can apply to light vehicle CNG/LPG engines as well as to medium passenger and commercial vehicles (M2/N2) equipped with diesel engines. R83 also contains provisions specific to hybrid variations of the vehicles under its purview. Motor Vehicle Emissions Motor Vehicle Emissions UN Regulation No. 83 UN R83, Uniform Provisions Concerning the Approval of: I. Vehicles with regard to Limitation of their Maximum Speed II. Vehicles with regard to the Installation of a Speed Limitation Device (SLD) of an Approved Type III. Speed Limitation Devices (SLD) Speed Limitation Devices Speed Limitation Devices UN Regulation No. 89 UN R89, Uniform Provisions Concerning the Approval of Vehicles with regard to the Protection of the Occupants in the Event of a Frontal Collision Frontal Collision Protection Occupant Protection in Frontal Collisions UN Regulation No. 94 UN R94, Uniform Provisions Concerning the Approval of Vehicles with regard to the Protection of the Occupants in the Event of a Lateral Collision This regulation applies to the lateral collision behavior of the structure of the passenger compartment of M1 and N1 categories of vehicles where the "R" point of the lowest seat is not more than 700 mm from ground level when the unladen vehicle plus 100 kg (i.e., the mass of a side impact dummy plus instrumentation) is at rest. Lateral Collision Protection Occupant Protection in Lateral Collisions UN Regulation No. 95 UN R95, Uniform provisions concerning the approval of vehicles with regard to specific requirements for the electric power train Electric Powertrain Vehicles Construction and Safety of Electric Powertrains UN Regulation No. 100 UN R100, Uniform Provisions Concerning the Approval of: I. A Close-Coupling Device (CCD) II. Vehicles with regard to the Fitting of an Approved Type of CCD Close-Coupling Devices Close-Coupling Devices UN Regulation No. 102 UN R102, Uniform Provisions Concerning the Approval of Vehicles Intended for the Carriage of Dangerous Goods with regard to their Specific Constructional Features ADR Vehicles Construction of Vehicles for the Carriage of Dangerous Goods UN Regulation No. 105 UN R105, Uniform Provisions Concerning the Approval of Pneumatic Tyres for Agricultural Vehicles and their Trailers Agricultural Tires Tires for Agricultural Vehicles UN Regulation No. 106 UN R106, Uniform Provisions Concerning the Approval for the Production of Retreaded Pneumatic Tyres for Motor Vehicles and their Trailers Retreaded Tires Retreaded Tires for Motor Vehicles UN Regulation No. 108 UN R108, Uniform Provisions Concerning the Approval for the Production of Retreaded Pneumatic Tyres for Commercial Vehicles and their Trailers CV Retreaded Tires Retreaded Tires for Commercial Vehicles UN Regulation No. 109 UN R109, Uniform Provisions Concerning the Approval of Tank Vehicles of Categories N and O with regard to Rollover Stability Tank Vehicle Stability Tank Vehicle Rollover Stability UN Regulation No. 111 UN R111, Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance Tire Noise, Wet Adhesion, and Rolling Resistance Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance UN Regulation No. 117 UN R117, Uniform Provisions Concerning the Approval of Wheels for Passenger Cars and their Trailers Passenger Car/Trailer Wheels Passenger Car and Trailer Wheels UN Regulation No. 124 UN R124, Uniform provisions concerning the approval of motor vehicles with regard to their pedestrian safety performance Pedestrian Safety Pedestrian Safety UN Regulation No. 127 UN R127, and Uniform provisions concerning the approval of motor vehicles with regard to advanced emergency braking systems Advanced Emergency Braking Advanced Emergency Braking Systems UN Regulation No. 131 UN R131
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Development of the Regulation

Pending Changes to UN R41

Latest Documents

29 Jan 2020
UN R51 : Proposal for revision of ASEP as a future concept of real driving | GRBP-71-24
29 Jan 2020
UN R51 : ASEP II informal group status report | GRBP-71-25
28 Jan 2020
Draft ASEP II informal group status report to GRBP | ASEP II-15-05
See all 104 related documents

Latest Meeting Discussions

2nd Informal Working Group on Additional Sound Emission Provisions | Session 16 | 24-26 Mar 2020
Working Party on Noise and Tyres | Session 71 | 28-31 Jan 2020
Working Party on Noise and Tyres | Session 70 | 11-13 Sep 2019
See more related meetings