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Retlif Testing Laboratories offers laboratory and site survey testing services in the areas of electromagnetic compatibility (EMC) and environmental simulation in accordance with UMTA, AAR, transit authority specifications, European standards, acoustic noise and telecommunications specifications. Testing to the latest versions of military, commercial, national and international standards. Retlif currently maintains three locations: headquarters and main laboratory facilities in Ronkonkoma, Long Island, N.Y.; branch facilities in Goffstown, N.H., and Harleysville, Pa.; and a regulatory office in Arlington, Va.