Energy saving and emission reduction is a common problem faced by today's auto manufacturers, and tire energy consumption can account for 20% of the total energy consumption of the vehicle. Therefore, as an important part of auto parts, the energy saving of tires is of utmost importance. In recent years, the European Union, the United States, and others have made laws and regulations to put limits on the rolling resistance of tires and other parameters. The EU and the United States are important export markets for China's tire manufacturers. It is of great significance to understand the laws and regulations of various countries for the timely adjustment of production layout by enterprises.

The European Union (EU) officially adopted the “Tire Labeling Directive of the European Parliament and the Council of the EU on fuel efficiency and other necessary parameters” on November 25, 2009. This is the implementation of the entire EU model for the production and sales of domestic automotive products. A new directive after the certification (WVTA) system and the restriction on the content of polycyclic aromatic hydrocarbons contained in tyres (REACH). The directive 779 stipulates that all imported EU tires in the next three years must be marked on the label with key tire parameters: fuel efficiency level, wetland grip performance, and external rolling noise. The label divides the tire efficiency into seven levels of A, B, C, D, E, F, and G, and identifies them from the best to the worst, from the green "A" to the red "G". In order to better promote fuel-saving tires, EU countries will implement financial incentives for tires that have reached at least Class C. Its scope includes the C1 (mainly car tires), C2 (mainly light-vehicle tires), and C3 (mainly medium-heavy vehicle tires) as defined by the European Union General Motor Vehicle Safety Act [Com (2008) 316]. The directive 779 requires EU member states to adopt and publish the laws, regulations, and regulations governing this directive on November 1, 2011 at the latest, and formally implement it on November 1, 2012.

New regulations in the United States and the United States mainly include the labeling system and the Smartway certification of the EPA.

Labeling system: The regulatory document issued by the National Highway Safety Administration (NHTSA) on March 30, 2010 requires that all tire manufacturers must comply with the fuel efficiency (rolling resistance) for replacement tires within 12 months of publication of the regulation. ), safety (traction under wet-pavement conditions) and durability (tread abrasion) are graded and marked on the tire in prominent locations. At present, only the replacement of tires requires fuel efficiency classification. The original tires are not subject to the classification system. Tire replacement tires mainly refer to replacement tires for passenger cars. The three main indicators of the products to be graded are also published on the U.S. government website on car safety. In addition, NHTSA also requires manufacturers to report data on various performance tests to assist them in refining their grading standards, and recommends that retailers retain all relevant tire labeling information prior to sale.

EPA's Smartway certification: Smartway certification is a third-party demonstration by an international authoritative testing agency that specializes in certification of auto parts such as energy-efficient cars and tires. By encouraging consumers to purchase such certified products, they can reduce fuel consumption, improve air quality, and reduce greenhouse gas emissions. At present, Smartway-certified brand products come from the United States, France, Japan, Germany, South Korea and China.

In addition, as early as the end of 2008, the Ministry of Economy, Trade and Industry of Japan and the Ministry of Land, Infrastructure, Transport and Tourism had announced the development of a regulation on the fuel efficiency of tires. Japanese tire manufacturers have recently proposed an optional tire labeling system that divides rolling resistance into five grades of AAA, AA, A, B, and C, and divides the wet grip force into four groups of a, b, c, and d. grade.