The TN visa (Trade NAFTA, now USMCA) is available only to Canadian and Mexican citizens. For qualifying professions, it is often much easier than H1B. Here is the full comparison: **TN Visa advantages:** - No annual cap, no lottery - Canadian citizens can be admitted at the border in minutes with a job offer letter — no USCIS filing required - Mexican citizens file DS-160 and attend consular interview - Valid 3 years, unlimited renewals - Process: employer issues TN support letter → Canadian citizen drives to border → CBP admits in TN status **TN Visa limitations:** - Only for specific USMCA professions (accountants, engineers, scientists, lawyers, computer systems analysts, etc.) - Does NOT allow for dual intent — you cannot use TN while pursuing a green card openly - TN is strictly nonimmigrant — harder to transition to green card than H1B - Limited to citizens of Canada and Mexico only **H1B advantages over TN:** - Dual intent allowed — you can simultaneously pursue green card - Available to all nationalities - Once approved, switching employers is easy (H1B transfer/portability) **Recommendation:** Canadian/Mexican professionals in qualifying TN occupations should start with TN for speed and simplicity. Once pursuing a green card, work with an attorney to bridge from TN to H1B or pursue EB-1A/EB-2 NIW directly.