The document summarizes Brazil's certification systems for non-destructive testing (NDT) personnel and welding inspectors. For NDT personnel, there are two levels - Level 2 technicians perform tests, interpret results, and write reports, while Level 3 technicians prepare procedures and may coordinate projects. Welding inspectors also have two levels - Level 1 inspectors monitor work and ensure procedures are followed, while Level 2 inspectors qualify procedures and sign welding documents. Both systems are overseen by professional associations and inspectors have certification numbers that can be verified online. Procedures and reports require signatures according to the inspector's qualifications and applicable codes.