The New York City School Construction Authority (SCA) is committed to ensuring public school buildings provide a safe learning environment for students. The SCA’s Industrial & Environmental Hygiene (IEH) Division works very closely with the SCA’s Architecture & Engineering (A&E) and Construction Management (CM) departments to provide guidance, management, and oversight related to environmental studies, investigations and remediation during construction and in existing schools. The services provided by IEH include work related to asbestos, lead, polychlorinated biphenyls (PCBs), indoor air quality surveys, mold, hazardous materials, underground storage tanks, potable water, and soil excavation/characterization and disposal. Environmental due diligence is also performed for all proposed new school sites and leased properties with the development of remedial measures or engineering controls necessary to render the site suitable for use as a school.