A first-class fitness instructor is awesome. The national vocational qualification certificate of fitness coach is divided into four grades: primary, intermediate, advanced and coach. National first-class fitness instructor is a higher-level and more professional certificate among fitness instructor certificates. You can apply directly to the issuing agency of the State Post to participate in the seven-day training and two-day assessment arranged by the State Sports General Administration. You can also take part in training and exams through fitness training institutions and get a national fitness certificate.