FEMA - Federal Emergency Management Agency
National Training and Education (NTE) - NTE offers an online course catalog for the Center for Domestic Preparedness (CDP), the Emergency Management Institute (EMI) and the National Training and Education Division (NTED).
Independent Study Program (IS) - The IS offers courses, including National Incident Management System (NIMS) courses, and they are all free. more >>>
FEMA CERT - The Community Emergency Response Team (CERT) Program educates people about disaster preparedness for hazards that may impact their area and trains them in basic disaster response skills, such as fire safety, light search and rescue, team organization, and disaster medical operations.
Emergency Management Institute - FEMA's EMI offers many free courses in their independent study program, including a course on hazardous waste. You will have to sign up for a student identification number (SID) to take the exams.