How do you get a Hazwoper certification?

Hi. I am graduating soon. I want to work in the environmental science field. Some of the jobs i am finding require a “40 hour hazwoper certification.” I would like to get this, as it seems like a selling point on a resume. I know it is reasonably expensive. In your opinion, Is it worth it?? How can i get one? I see online sites for it, but do these sites give you the certification? Is there a test? Which sites are the best? Are there classes that to attend in person? I REALLY appreciate any help! I am an environmental science student looking to bolster my resume. What else can i do?
Help please? Anyone?
The link helped alot, but i am still in question. I want a certification that is accepted across different agencies and corporations.. The nearest realtime training to me is a state away. I would like to know if online training (with webcam interactions) is accepted. Anyone know. Thanks for any help!