1. The original buyer series of the Ministry of Labor was divided into four levels: buyer, assistant buyer, buyer and senior buyer. This can pass the cross-level exam, as long as the education and age are reached, you can take the exam. However, it has not been implemented nationwide at present. At present, Tianjin's certificate is the main one. Only some cities in the country have opened examination areas, and generally they have to take exams in Beijing, Tianjin, Guangzhou, Wuhan and other places.

2. The series of registered purchasers of China Federation of Logistics and Purchasing is divided into three levels: purchaser, senior purchaser and registered purchaser. The series of registered buyers are synchronized with the international ITC certification, and they can't take the cross-level exam, but can only take the first level exam. Registered procurement is a national unified examination, and all provinces have training and learning examination centers, so there is no need to go abroad for training examinations.