First of all, supervisors can go to the local construction engineering supervision institutions for annual inspection. These institutions are usually set up by local governments or relevant industry associations, and are responsible for supervising and managing the construction supervision work in the region. Supervisors need to bring valid certificates and originals and copies of supervision certificates, and apply to the supervision institution for annual inspection. The supervision organization will verify the qualifications and work experience of the supervisors, and conduct relevant assessment and training to determine whether they are qualified to update the supervision certificate.
In addition, supervisors can also choose to go to some specialized training institutions for annual inspection. These institutions usually provide training courses for the annual inspection of regulatory certificates, including theoretical knowledge, practical operation and examinations. Supervisors need to take part in training and pass the exam before they can get the qualification to update their supervisors' certificates.
In short, after the expiration of the supervision certificate, the supervision personnel should conduct annual inspection in time to ensure the validity of the certificate. Where to go for annual inspection, you can choose local construction engineering supervision institutions or specialized training institutions, and the specific choice can be decided according to your own situation and needs.