EPA's Schools Chemical Cleanout Campaign (SC3) is working to encourage schools to use green cleaning practices to safely clean their classrooms and grounds. From elementary school maintenance closets to high school chemistry labs, schools use a variety of chemicals. Some of the most essential chemicals are those that keep schools clean and safe for students to learn and grow. However, the chemicals used in cleaning products can sometimes be harmful to human health and to the environment. This fact sheet describes green cleaning, its benefits, and how schools can build a green cleaning program.