This webpage serves as a central location for information and resources on the management of indoor air quality (IAQ) in Delaware schools to improve the environmental conditions for school staff and students.

Senate bill 270 required the Division of Public Health (DPH) to establish routine indoor air quality monitoring standards. According to the Environmental Protection Agency (EPA), each day one in five Americans occupies a school building, with the majority of which being children. Providing healthy IAQ in school environments is proven to decrease student and teacher absences due to IAQ-related sickness and to promote improved productivity and focus for building occupants. DPH has taken a holistic approach towards this, recommending approaching building IAQ from multiple avenues to provide the best results for each school’s unique situation.
Bill Detail – Delaware General Assembly


Guidance Documents for School Facility Staff

Contractor Certification Program
Senate bill 270 also requires contractors working in fields that will directly affect the water quality or IAQ of schools to become certified by DPH, this includes HVAC, electrical, plumbing, general contracting, environmental services, and remediation services. Contractors can submit an application with supporting documentation to become certified with DPH to conduct work within schools. This ensures qualified individuals will be performing duties that directly impact the health of the building.

Contractor Certification Application
• Certified Contractor List coming soon!
• Submit completed applications to

Previous Water Sampling Results

Water Testing Resources
3Ts for Reducing Lead in Drinking Water | US EPA

IAQ Resources
Standards 62.1 & 62.2 (
School IAQ Assessment Mobile APP
Read Only Versions of ASHRAE Standards
Energy Savings Plus Health Guidelines
Reference Guide for Indoor Air Quality in Schools | US EPA
Indoor Air Quality in Schools Guide | American Lung Association
Indoor Air Quality – Schools | Occupational Safety and Health Administration (
Identifying Greener Cleaning Products | US EPA
Introduction to Integrated Pest Management | US EPA

Indoor Air Quality Master Class Professional Training Webinar Series | US EPA
Clean Air at School | American Lung Association
Technical and Case Study Presentations on Reducing Lead in Drinking Water in Schools and Child Care Facilities | US EPA