RESAG, the Water Supply and Sanitation Network - RESAG has been created under the scope of the Brazilian Technology System SIBRATEC – Technological Services. In this first stage, its operation has the support of the project "Improvement of the Laboratory Capability in the area of Quality, Sanitation and Water Supply", as approved by FINEP on April 13, 2011. In this project, the objectives are directed towards the development of a set of actions structured in subprojects intended to improve the provision of technological services offered by the 37 laboratories integrating the network, derived from ten (10) Brazilian States of the country, aiming to meet market demands of micro-, small- and medium-companies in themes such as: interlaboratory programs, reference materials, training, accreditation, technical competence, calibration and materials for sanitation and water distribution .