The New Hampshire Environmental Laboratory Accreditation Program (NH ELAP) provides primary accreditation to environmental laboratories located in New Hampshire and out-of-state to ensure sufficiently accurate, precise and consistent results of tests, analyses and measurements. Secondary accreditation is granted to out-of-state environmental laboratories that have another National Environmental Laboratory Accreditation Program Accreditation Body as their primary accreditation body. NH ELAP is currently accrediting environmental laboratories according to the 2009 TNI Standards. In general, primary accreditation is based upon the results of the on-site assessment and the results of the laboratory's participation in proficiency test studies. Secondary accreditation (recognition) is based upon the accreditation granted by the primary accreditation body. NH ELAP offers accreditation for a variety of Potable Water (drinking water), Non-Potable Water, (wastewater and whole effluent toxicity testing), Non-Potable Water SW-846, Solid and Chemical Materials SW-846, Air and Tissue methods. View our current posted Fields of Accreditation (FOA) [aka Method Selection Forms] for further information.