CDC: Free Environmental Public Health Online Courses (EPHOC)
http://www.cdc.gov/nceh/ehs/?source=govdelivery
New courses now available for continuing education credit!
01. General Environmental Health
03. Food Protection
08. Zoonoses, Vectors, Pests, and Weeds
09. Radiation Protection
10. Occupational Safety and Health
11. Air Quality and Environmental Noise
15. Disaster Sanitation
Fourteen courses are now available. The full package of 15 courses equals more than 45 hours of training.