Tire Rack.com

Government Tire Approval Marks


Lea esta página en español

Before products can be sold in many countries, their manufacturers are required to test and certify they meet government standards. While many countries establish their own unique standards, others simply choose to adopt established standards to simplify global complexity.

In the case of tires, manufacturers are required to test and certify they meet all applicable safety and performance standards, which can include physical dimensions, sidewall branding and durability, as well as high-speed endurance, road noise and/or wet traction.

Once the testing and paperwork has been completed, the tire manufacturer can brand the required mark(s) on the tire’s sidewall (typically near the wheel). Since many tires are sold globally, tires can be branded with more than one governmental approval code.

Several examples of the governmental approval codes follow.

Inmetro symbol

Brazil

Inmetro - National Institute of Metrology, Standardization and Industrial Quality

The letter "N" superimposed over the letter "I" (sometimes erroneously called the "I" code).


CCC symbol

China

China Compulsory Certification (CCC) Mark

China Compulsory Certification mark for products being exported to or sold in the Peoples Republic of China.


Traditional UNECE symbol
Alternate UNECE symbol

Europe

United Nations Economic Commission of Europe (U.N.E.C.E.)

More info


Indonesin National Standard

Indonesia

Indonesian National Standard

Indonesian National Standard certification mark for products being exported to or sold in Indonesia.


Norma Oficial Mexicana symbol

Mexico

Norma Oficial Mexicana (NOM)

"Official Mexican Standard" (commonly referred to as NOM or normas).


DOT symbol

United States

United States Department of Transportation (DOT)

More info


Most Popular Links

Air Pressure - Correct, Underinflated and Overinflated
Air Pressure vs. Dry Performance
Air Pressure vs. Wet Performance
Air Pressure, Temperature Fluctuations
Air Pressure/Load Adjustment for High Speed Driving
Air Pressure: When and How to Set
Alignment
Breaking In Your Tires
Calculating Tire Dimensions
Checking Tire Inflation Pressure
Determining the Age of a Tire
Diameter Comparison of Light Truck Tire Sizes
How Do I Compare Price vs. Value?
How to Read Speed Rating, Load Index & Service Descriptions
Load Range/Ply Rating Identification
Match Mounting to Enhance Tire & Wheel Uniformity
Load Reduction of Euro- and P-Metric Tires on Light Trucks
Measuring Tire Tread Depth with a Coin
Mounting and Balancing
P-Metric and Euro Metric Tire Sizing
Run-Flat Tires
Selecting the Right Tires
Sidewall Markings
Specific Mileage Warranties
The Plus Concept
Tire & Wheel Owner's Manual
Tire & Wheel Package Installation Instructions
Tire & Wheel Package Ride Uniformity Confirmation
Tire Pressure Monitoring Systems
Tire Rotation
Tire Size Conversion Chart
Tire Size Information
Tire Warranties
Uniform Tire Quality Grade (UTQG) Standards
Where to Install New Pairs of Tires?


JOIN US
GET OUR EMAILS

Want to stay on the inside track?
Sign up for our emails today!