TN Visa Letter Help

Hi All,

I am a Cdn. Citizen and have received a job offer in the United States. I have the Visa Screen certificate and a U.S. license. I am just waiting for the TN visa letter from Human Resources to bring to the border and I'm not sure if they know the correct format. I'm wondering if there are any Canadian nurses who work in the U.S. that can help me with the format of the TN letter or have a sample of how the letter should be written. Any advice would be greatly appreciated. Thanks,

Jenn