TN Visa Changes 2025: What the USCIS Policy Manual Update Means for Applicants

On June 4, 2025, USCIS released Policy Alert PA-2025-05, a major update to the USCIS Policy Manual that specifically addressed TN nonimmigrant classification adjudication standards. For applicants and employers who hadn't been following immigration policy closely, the update produced a wave of unexpected denials and RFEs in the second half of 2025.

Here's what changed, what it means for different profession categories, and how to adjust your application strategy.

Background: Why the Update Happened

The TN's 63 professions list has not been updated since 1994. Over three decades, officers and applicants developed informal interpretive conventions — unwritten rules about how to map modern job duties to 1994 categories. Some of these conventions became permissive to the point that they arguably stretched the statutory definition.

The June 2025 update was a corrective measure. USCIS used the policy manual update to codify stricter interpretations of several high-scrutiny categories and to eliminate flexibilities that had accumulated in practice but didn't have strong regulatory support.

The Key Changes

1. Credential Equivalency for Foreign Degrees

Previous practice: WES evaluations showing "equivalent to a U.S. Bachelor's degree" in any field were generally accepted across TN categories.

Post-June 2025: Officers now apply greater scrutiny to whether the foreign degree field aligns with the specific profession being claimed. A general "bachelor's equivalent" isn't sufficient for science categories — the degree should be in the scientific field. An engineering degree should be in engineering, not a related applied science.

This change has increased the number of RFEs and denials for applicants whose credential evaluations established degree equivalency without specific field alignment.

What to do: Ensure your credential evaluation specifies both the degree level and the field, and that the field credibly connects to the USMCA profession you're claiming. If your evaluation is older than 2024, consider obtaining an updated evaluation that is specific about the field equivalency.

2. Engineer — Degree Field Requirement

Previous practice: A Bachelor's degree in Computer Science was widely accepted for Engineer TN applications, particularly when the job duties involved software development or systems work.

Post-June 2025: Officers are now applying the position that "Engineer" requires an engineering degree — one where "engineering" is explicitly part of the degree title. Computer Science, Information Technology, and related science degrees are increasingly being rejected for Engineer applications.

This is the most widely impactful change. It affects a large number of Canadian tech workers who obtained CS degrees from Canadian universities and have been successfully applying as Engineers for years.

What to do: If you have a CS degree and were previously approved as an Engineer, consider switching to Computer Systems Analyst for future applications — assuming your duties fit the CSA definition. If your role genuinely involves engineering-level system design and you can document it, you may still succeed with an Engineer application, but expect higher scrutiny and prepare a stronger duty description.

3. Computer Systems Analyst — Stricter "Primary Duties" Test

Previous practice: Developers who spent roughly half their time on coding and half on design could often qualify as CSA with a well-written letter.

Post-June 2025: Officers are applying what practitioners describe as an "80/20" test — the majority of your duties must be analysis and design work, with coding genuinely incidental. Applications where coding, development, or implementation is clearly the primary activity are being denied even with carefully written letters.

What to do: Honestly assess whether your role is primarily analytical or primarily implementation-focused. If your job is 70%+ coding, CSA may not be appropriate and you should seek legal advice about whether another category applies. If your duties are genuinely analysis-heavy with incidental coding, ensure your employer letter describes them with that emphasis and appropriate specificity.

4. Management Consultant — Supernumerary Standard Formalized

Previous practice: The "supernumerary" (project-based, not permanent staff) requirement was an understood standard but wasn't consistently applied.

Post-June 2025: The Policy Manual explicitly codifies the supernumerary requirement and provides examples of what satisfies it versus what doesn't. Officers now have formal guidance supporting denial of applications that look like direct hires labeled as "consultants."

What to do: Ensure your employer letter specifically describes the project scope, the advisory nature of the role, and the defined end point. Benefits that mirror permanent employment should be explained or the structure should be reconsidered.

5. Eliminated Flexibilities for Educational Equivalencies

Post-June 2025: USCIS narrowed the circumstances under which non-degree credentials (diplomas, certificates) can substitute for a degree in certain categories. The three-year diploma + experience path remains available for some categories, but applications using this path now require more detailed documentation of the actual work experience and how it specifically prepared the applicant for the claimed TN profession.

What Didn't Change

• The 63 professions list itself — no new categories were added or removed
• The border application process for Canadians
• The consular process structure for Mexicans
• Three-year maximum admission periods
• The prohibition on dual intent
• The TD dependent status framework

The Approval Rate Context

Despite the June 2025 tightening, overall USCIS TN approval rates remain high — 94.6% in Q1-Q3 of 2025 compared to 93.2% in 2024. The policy changes narrowed specific categories rather than broadly restricting the program.

The professionals most affected are:

• Tech workers with CS degrees applying as Engineers
• Developers applying as CSA with duty descriptions that skew toward coding
• Management Consultants in ambiguous contractor/employee arrangements

Well-prepared applications for clear-cut categories — Accountant, Pharmacist, Registered Nurse, Economist, Biologist — are not materially more difficult to approve than they were in 2024.

What You Should Do Differently in 2026

1. Review your degree field against your claimed profession before applying or renewing — especially for technical categories.

2. Audit your employer letter against the post-June 2025 standard. If your letter was written in 2022 or earlier, it may not reflect current duty description standards.

3. For Engineer applications with CS degrees: consult an immigration attorney before proceeding, particularly if you've had a recent denial or are concerned about a borderline case.

4. For Management Consultant applications: ensure the letter explicitly addresses the supernumerary standard with project scope and timeline.

The US TN Visa (USMCA) Guide is specifically updated to reflect the June 2025 USCIS Policy Manual changes — covering what each affected category now requires, with updated duty language and letter frameworks designed for the 2025–2026 adjudication standard.