The Public Health and Environmental Laboratories (PHEL) is comprised of five service areas: Public Health Laboratory Services, Environmental and Chemical Laboratory Services, Clinical Laboratory Improvement Services, Policy Planning and Regulatory Compliance, and Administrative/Financial Services.

PHEL strives for quality in all areas of service to the residents of New Jersey through its programs of newborn screening, bio and chemical threat preparedness, ensuring water quality, identifying infectious disease outbreaks and other public health threats.