Don's responses are all correct for US domestic installations; however, if the final installation is in Canada, the motor will still need CSA certification. Many US manufacturers can provide it though, they just can't provide UL certification.
Note: Class, Division, and Group designations are the same under "Division" classifications.
Robert B. Alexander, P.E.
"I know that you believe you understand what you think the NEC says, but I am not sure you realize that what you read is not what it means." (Corollary to Charlie's Rule)