Reducing the incidence of surgical site infections (SSIs) is one of the objectives of the national program to combat nosocomial infections (NI). Interregional surveillance of SSIs has been coordinated by the Network for Alert, Investigation, and Surveillance of Nosocomial Infections (Raisin) since 2001. Each year, participating surgical departments collect information regarding the patient and their procedure. All included patients are followed up through the 30th postoperative day. SSI (superficial or deep incision, organ/space) are defined according to standard criteria. In 2012, 1,006 departments in 407 institutions reported 105,069 surgical procedures over a 6-month period, more than two-thirds of which involved visceral surgery (31.7%), orthopedics (27.1%), and gynecology-obstetrics (24.0%). The incidence rate of surgical complications ranged from 0.23% for vascular surgery to 3.29% for urological surgery, representing a crude rate of 1.36% (1,429 surgical complications, all types of procedures combined): more than two-thirds of ISOs involved procedures in visceral surgery (43.2%) or gynecology-obstetrics (27.2%). From 2008 to 2012, a slowdown in the decline of the ISO incidence was confirmed, along with an increase in 2012 for certain priority procedure groups, notably total hip replacements (+35%). Conversely, the incidence decreased for cesarean sections (-11%). The slowdown in the decline in the incidence of ISO observed in 2012 suggests that we are approaching threshold values, which partly explains why the national quantitative targets have not been met. (R.A.)