The regularity of training institutions is one of the important criteria to evaluate their teaching quality and credibility. Formal training institutions should have the following characteristics.

First of all, formal training institutions should have legal business qualifications. This includes business license, tax registration certificate, organization code certificate and other relevant certificates. These certificates can prove that the training institution is a legally registered enterprise with business qualifications and tax obligations. At the same time, training institutions should also have relevant educational qualifications, such as the school license issued by the education department and the certification of education and training institutions.

Secondly, formal training institutions should have professional teachers. This includes the requirements for teachers' academic qualifications, qualification certificates and teaching experience. Teachers should have relevant professional knowledge and teaching ability, and be able to provide high-quality education and training services for students.

Third, formal training institutions should have a sound teaching management system. This includes the requirements of teaching plan, textbook selection, curriculum setting and teaching evaluation. Training institutions should formulate scientific and reasonable teaching plans according to the needs of students and the actual situation, and evaluate and adjust according to the teaching effect.

Fourth, formal training institutions should have a good reputation and reputation. This can be understood by looking at the evaluation of training institutions, feedback from students, social reputation and so on. Good word of mouth and word of mouth can prove that the teaching quality and service level of training institutions have been recognized and trusted by students and society.

In short, regular training institutions should have legal business qualifications, professional teachers, perfect teaching management system and good reputation and reputation. Students should pay attention to these aspects when choosing training institutions to ensure that they can get high-quality education and training services.