Use accurate current terms and a clear description of the proposed US engagement.
Identify what changes and what continues
The employer, duties or other terms may need clarification. Do not use an old arrangement to imply a US proposal that the parties have not actually agreed to.
Proof of Canadian citizenship, the degree parchment or an official transcript, and a letter from the U.S. company describing forestry work in the profession's own terms, the expected pattern of deployment, the period and the remuneration. The employer's support letter, the original credential the profession requires, proof of Canadian citizenship, and any agency or client agreement that explains where the work will physically happen. Build the TN file from authentic records: a signed offer or contract, an employer letter describing the actual professional services, proof of Canadian or Mexican citizenship, and evidence meeting the selected USMCA profession’s qualifications. Keep proof of the current TN status and prior employer's letter available for comparison, since a reviewer will want to confirm the new role is genuinely distinct and properly supported. TN eligibility still turns on Canadian or Mexican citizenship, a prearranged engagement in a USMCA-listed profession, and compliance with that listing’s particular qualification rule. Avoid copying duties from a template: inconsistencies among the agreement, support letter, and applicant’s explanation can weaken an otherwise accurate filing or border presentation.