I'm thinking of getting WEMT-certified through NOLS, which would include EMT-B certification. However, what would I do after that? Can I work with just EMT-B certification, or do I have to enroll in a program to get EMT-P? Do they have such programs where you work as you go along? I guess I'm just wondering what sort of investment I would be making in taking the class. Would it pay off right away, or would I have to invest more and get all the way to EMT-P before I would be able to support myself working as an EMT?