Authoritative. The Children's Art Magazine Assessment Center has grading certificates, and the Art Service Center of the Ministry of Culture has art grading. Those with qualifications have calligraphy. The art is national and authoritative. The Social Art Proficiency Examination Center of the China Academy of Art was established on April 21, 2003. The Examination Center consists of an expert review committee and an examination office. The China Academy of Art is the first national higher art institution with complete disciplines and comprehensive scale established in China.