Reassess the current duties before relying on the TN plan. An earlier design offer does not establish that a changed production role remains within the profession.
Keep the final role consistent with the evidence
Identify the revised responsibilities and effective date, preserve the original offer and explain the change. Do not simply replace the title while leaving contradictory duties in the file. An urgent manufacturing schedule does not guarantee admission or authorize different work. The applicant and employer should resolve the professional match and required process before the changed assignment begins.
Use that deadline to obtain the acquirer's written confirmation of your employer and duties, so any necessary new letter or petition is ready in time rather than assembled during a delay at a port of entry. Sequence preparation from the employer's genuine start need backward: confirm citizenship, classify the occupation, test its minimum credential, obtain the letter or contract, and only then choose travel or Form I-129. In parallel, the offer letter usually needs revision: human-resources departments write to internal templates, and the first draft rarely uses the language the listed profession requires.