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APPLICATION ANSWERS · TN FIELD GUIDE

Is supervision by an engineer enough for the scientific-technician TN category?

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THE DIRECT ANSWER

No. The criteria include the applicant’s relevant theoretical knowledge, practical ability and direct support of professionals in a named discipline. A supervisor title alone does not establish them.

Describe the professional activity being supported

Identify the engineering or other listed-discipline work, the applicant’s tasks and how they directly support the professionals. Explain the required knowledge and ability with actual evidence. Include unrelated duties rather than ignoring them. Canadian or Mexican citizenship, qualifying prearranged activities and temporary entry remain separate requirements.

The first review should produce an eligibility matrix stating each claimed fact, the controlling record, the person who can confirm it and any contrary fact. It distinguishes a missing document from a business fact that must change or a category mismatch that wording cannot repair.

Hypothetical example: A hydrographic-survey instrument calibrator is asked to proceed when a key fact appears only in a job title. The applicant must decide whether primary records establish the actual criterion before relying on the description.

A Canadian citizen may request TN admission at a port of entry or through an employer’s USCIS I-129 petition; neither route permits a self-employed U.S. arrangement.