The Proposed 48-Month Emergency Medicine Residency Requirement Demands Immediate Scrutiny.

The Accreditation Council for Graduate Medical Education's (ACGME) proposal to mandate 48-month training for all emergency medicine residency programs represents a significant departure from the current system where both 36- and 48-month formats successfully coexist.The ACGME's justification relies on a methodologically flawed survey that never directly asked program directors about optimal training duration. Instead, it calculated totals by summing individual rotation estimates without considering integrated curricula or practical constraints. Even if these results were to be accepted, directors of three-year programs reported a mean desired duration of only 41.6 months-hardly justifying a universal 48-month mandate.Current evidence contradicts the ACGME's rationale. Three-year graduates achieve higher board pass rates (93.1% vs 90.8%) and demonstrate equivalent clinical performance to four-year graduates. The mandate would impose substantial financial burdens on trainees-an opportunity cost exceeding $200,000-$250,000-while potentially deterring qualified applicants and discouraging fellowship training.We urge the ACGME to pause implementation and provide compelling evidence that a 48-month mandate is necessary and demonstrably superior to the current model.