AC21 Portability 2026: Should You File I-485 Supplement J Proactively or Wait for RFE?

For employment-based green card applicants whose I-485 has been pending for more than 180 days, AC21 portability offers a critical safety net when changing employers. AC21 (American Competitiveness in the Twenty-First Century Act) allows applicants to move to a same or similar occupational classification without jeopardizing their pending adjustment of status application. The central question addressed in this Murthy Law Q&A is whether applicants should proactively file Form I-485 Supplement J when invoking AC21 portability, or wait until USCIS issues a Request for Evidence (RFE). This is a nuanced procedural decision that can significantly impact the outcome of an adjustment of status application. Generally, USCIS regulations and policy guidance allow applicants to submit Supplement J either proactively or in response to an RFE. Proactive submission can help establish a clear record of the employer change and demonstrate eligibility under AC21 before any questions arise from an adjudicator, potentially streamlining the review process. For EB-3 applicants navigating this decision, the key considerations include the similarity between old and new job duties, the timing of the employer change relative to the 180-day threshold, and whether the new position falls within the same occupational classification. Documentation of the new position's duties and salary should be prepared regardless of the submission strategy chosen.