Do not assume that it can. The listed diploma and certificate alternatives have defined requirements and require three years of experience.
Check the program before buying another report
A qualifying diploma concerns at least two years of postsecondary study at an accredited institution in Canada or the United States; the certificate definition concerns qualifying Mexican programs and issuers. The degree route is separate, with reliable evaluation required for degrees from institutions outside those three countries. Private training and document services do not replace the actual qualification or current official application charges.
Beyond legal review and any credential evaluation or translation, budget for documenting multiple work locations, and check separately whether a state licence or registration for geology practice carries its own application costs. A Canadian citizen presenting TN evidence directly at a land port of entry pays a different fee structure than an employer that instead files Form I-129 with USCIS in advance, and either route can carry additional charges depending on how the case is processed. A corrected letter and a registry extract are ordinary administrative costs; a genuine change of employing entity may require a fresh request, and possibly a Form I-129 petition, with its own government charges and preparation time.