The Maternal Mortality Committees are part of the proposed Epidemiological Vigilance for Pregnancy Complication System implementation, which intends to provide useful and timely information, thus favoring the use of such information on the local health system level, and therefore strengthening its capacity of analyzing the maternal health situation, in order to adjust its service offer to the specific needs of the population. In Paraná, from 1989 on, 24 Regional Committees and 1 State Committee against Maternal Mortality were implemented, involving different institutions and professionals. Nursing is represented in all Committees, performing audits and appraisals and proposing actions which will reduce Maternal Mortality in the State of Paraná