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Radiofrequency (RF) is an invisible energy that we use in most wireless equipment and devices, such as those for communication and heating. Although it has many important uses, RF energy also has risks that you need to understand and avoid. Take this course to learn what RF energy is, where you may find it, its hazards, how to avoid them and what to do if you've been overexposed. This course is ideal for anyone who may be exposed to RF energy.

Laws require us to regulate stormwater in order to reduce the pollution of rivers and lakes. Identifying sources of storm water pollution and keeping them from coming in contact with runoff is one of the best and most economical ways of protecting the quality of our waters. This course presents best management practices to prevent stormwater pollution.