Evolución de la Red Nacional de Laboratorios 2006-2008: los cambios en la normativa impulsaron cambios en el desempe？o del laboratorio de salud pública.

introduction: colombia developed its law and health services on international counseling; public health laboratory (phl) is an example. evolution of national public health, specially during 2003 to 2007 paved the way for a phl diagnostic and evaluation from the law and quality management. methods: descriptive longitudinal study with independent surveys to the phl based upon a proposal for an “authorization system” and a modification and application of epidemiologic surveillance cycle to make information feedback and follow-up onto the phl. results: phl coordinators participation was important during 2006 to 2008, up to 67%. phl reached in 2008 64% in management and 77% in technical requirements; items with the most progress were organization & client service, quality assurance and biosafety. conclusions: law was positively influential in the phl performance; there are evidences of advances in quality with technical competence; their personnel, methods, processes and facilities do require technical assistance from central level. it is needed a prospective exercise for the future.