In September, U.S. Customs and Border Protection announced the designation of 14 Canadian Ports of Entry for optimized Processing of first-time TN and L-1 Admissions to the U.S. ( Before proceeding on your own, we recommend contacting our office to discuss your plans to seek TN or L-1 admission, and to become aware of the potential pitfalls and risks associated with particular ports, as well as with the TN and L-1 processes in general.