A large variation of healthcare facilities were identified. São Paulo is the State with highest number of healthcare facilities but the State of Santa Catarina has the highest ratio of healthcare facilities by 1.000.000 habitants(1,99). Human resources for HAI-SS varied, and, in some, they were not exclusive for data management but accumulated other functions. Hospital participation in the HAI-SS was mandatory by law in 3 States. HAI-SS were classified as chain in two, circle in four, and wheel in one State. HAI-SS were mainly driven toward acute care facilities; ventilator associated pneumonia, blood stream, urinary tract, and surgical site infections were included. Participation in the National HAI-SS occurred by sending data regarding blood stream infections. Routine feedback of surveillance data was not adopted in two States, one State have been using data gathered from HAI-SS to develop governmental plans for HAI rates reduction.