Shiel Medical Laboratories and testing locations are subject to Clinical Laboratory Improvement Amendments of 1988 (CLIA-88) certification and maintain current CLIA licenses. Shiel is OSHA Certified for Occupation Lead Screening and is JCAHO (Joint Commission on Accreditation of Health Care Organizations) accredited. In addition, Shiel Medical Laboratories consistently maintains highest rankings in New York City and New York State in regard to inspections and proficiency testing events.