The information provided in each course is quite similar. However, many students prefer the instructor-to-student interaction, as well as networking potential, that you will only receive in a classroom format. In addition, there is more emphasis on training methodologies covered in the classroom, which is ideal for individuals who may be providing safety and environmental training in house. The benefit to the online version is less travel cost, and you may complete the course at your own pace. Either way, the certificate is the same.