Details: on management: 1 - 3 detections / standard, only minor nonconformities (NC2) detected, concerning organization, quality management systems and document control. On techniques: 3 - 11 detection / standard, with major nonconformities (NC1) on all items; On Lab levels: NC1 and NC2 encountered more frequent in provincial (12) and city Lab (15) compared to Central one (0); observations finding (NC 0) reduction in provincial (3) and city (2) compared to the central lab (14).