Forklift Certification...

I just got a mailer from United Rentals. They are offering a Lull Forklift Certification class, $250 per person. In the letter it states that "as of 12/1/99 Operators must be OSHA compliant, it's the law" Can anyone tell me what this means? I know lots of Lull operators that have not had any formal training classes or certifications. What does it mean to be OSHA compliant? I am in CT btw, which I know has some different laws regarding equipment operation, etc. vs. states like MA.

Forklift Certification...