UR is a U.S. parts certification. Finished product certification is the UL Mark.
1, UL certification CRUUS mark or RUCRU mark.
2. RUUS Mark: Recognized Part Mark for use in Canada and the United States. This is a new UL Recognized Component Mark, which came into effect on April 1, 1998 . It can be used for parts certified by UL to both Canadian and U.S. requirements.
3. Originally, UL did not intend to introduce a combined Recognized Component Mark, but because UL's certificate of compliance users whose products are sold in both Canada and the United States preferred the Canada/U.S. Listing and Classification Marks, this new mark was introduced.
4. RUCRU Mark: Recognized Parts Mark and Canadian Recognized Parts Mark.
Expanded Information:
Certification Characteristics:
U.S. DOT certification and EU EEC certification is completely different from the two certification systems, the United States is actually a development of the market, Europe belongs to the type approval, compared to the DOT certification has the following characteristics:
1, the United States free of charge to publish all of its standards, regulations, Act;
2, it is a self-certification program, by the manufacturers in accordance with its published regulations to determine whether the product meets the standard;
3, the certification process by the enterprise is responsible for its data, DOT does not supervise the entire testing process;
4, the Department of Transportation will not issue any certificate to the applicant;
5, lenient entry and strict exit: annual compliance testing is a powerful means of checking the validity of the manufacturer's self-certification;
6, the market supervision is very strict, the U.S. agencies will be in the market each year Conduct random inspections, once found to be non-compliant, the punishment is quite severe.
7, the Ministry of Transportation and Manufacturers of the contact are through the manufacturer's agent in the United States to implement. For more information, please consult Hangzhou Weifang engineer.
Baidu Encyclopedia - U.S. DOT Certification