Dot certification
Dot is the English abbreviation of the US Department of transportation. The U.S. Department of transportation was established in 1967, headquartered in Washington, D.C., and consists of the Federal Highway Administration (FHWA), the Federal Aviation Administration (FAA), the Federal Motor Vehicle Safety Administration (FMCSA), the maritime transportation administration (Marad), the National Highway Traffic Safety Administration (NHTSA), the Office of the attorney general (OST) and other departments. It has 60000 employees in the United States. Its responsibility is to develop and improve the laws and regulations related to transportation and transportation, make a series of regulations and issue certificates for various means of transportation and dangerous goods entering the United States. Committed to maintaining traffic safety and promoting economic development to meet the needs of the environment and national defense.
history
The dot certification system, the federal motor vehicle safety standard (FMVSS), was established in 1968. The National Highway Traffic Safety Administration (NHTSA) of the U.S. Department of transportation is responsible for formulating / revising the standard and implementing it. Dot certification is mandatory certification, that is, all motor vehicles and accessories sold in the United States must pass dot certification and have dot mark. After more than 30 years of practical application, dot certification has gradually extended to the whole North America from being implemented only in the United States at the beginning.
present situation
Nowadays, in the eyes of North American consumers, the dot code molded on the sidewall is a label that promises quality. In other words, it is a quality assurance certificate issued by the tire manufacturer. Therefore, they take it for granted and are willing to accept the phenomenon that the price of tires with dot code in the market is higher than those without dot code. In the eyes of motor vehicle and parts manufacturers, dot code represents a responsibility that the product unconditionally meets all applicable provisions of the federal motor vehicle safety standard (FMVSS) on minimum performance requirements and product identification requirements. In fact, dot certification is a market game rule, which embodies the business spirit of "free trade, responsibility and benefit sharing". Of course, for motor vehicle and spare parts manufacturers, dot certification is as important as the "stepping stone" and "access certificate" for motor vehicle and spare parts products to enter the North American market.
Certification and testing procedures
The U.S. Department of transportation (DOT) clearly stipulates that any application for compliance with federal motor vehicle safety standards (FMVSS) to dot must be based on the manufacturer's understanding of ovsc (Office of vehicle safety compliance) laboratory testing procedures and production in accordance with dot product safety specifications. In other words, dot specifies in detail the laboratory test procedures, laboratory test equipment, test tolerance, product standard requirements, specific test steps, and test report requirements for each specification of motor vehicles and parts products. All manufacturers exporting motor vehicles and parts products to the United States must ensure that their products comply with dot required laboratory testing procedures.
Authentication steps
The process of submitting a federal motor vehicle safety standard (FMVSS) compliance application to dot consists of the following steps
1 the manufacturer designates a dot application agent with permanent residency in the United States who will participate in all contact with dot during the compliance application process.
2 submit agent designation documents, agent approval documents, and federal motor vehicle safety standards (FMVSS) compliance applications to dot.
3 randomly select samples and send them to a contracted laboratory approved by dot for testing.
4 the laboratory shall submit a specific product testing plan to the ovsc of dot and start testing after approval.
5 in case of any problem during the test, the laboratory will submit the preliminary evaluation report and compliance investigation report to the manufacturer applying for the test, and put forward product improvement suggestions.
6. The manufacturer shall improve the product and re submit the sample for re testing until it finally passes the test.
7 ovsc and dot approve the manufacturer's compliance application and allow the product to enter the U.S. market legally.
8 ovsc will conduct sampling inspection on motor vehicles and parts products every year, review the effectiveness of dot certification held by the manufacturer, and ensure that the products meet the minimum performance and identification requirements specified in FMVSS standard.
The above is the general operation process of dot certification and laboratory testing of motor vehicles and parts products. There will be differences in the details of the application process according to different product types and specifications. Manufacturers are welcome to consult our dot project engineers.
significance
The meaning of dot mark is that dot abbreviations are used as symbols to indicate that the products pasted with dot mark comply with relevant us The main requirements specified in dot directive (FMVSS MGP), which are used to confirm that the product has passed the corresponding test and / or the manufacturer's test statement, and truly become the pass for the product to be allowed to enter the North American market. Industrial products required by relevant laws and regulations to be pasted with dot mark shall not be sold without dot mark. Products that have been pasted with dot mark into the market shall be ordered to recall from the market if they are found not to meet the safety requirements. Those who continue to violate the provisions of relevant dot mark will be fined a high amount and forced to withdraw from the market.