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Princeton to Reinstate Proctors for In-Person Exams, Ending 133-Year Honor Code Practice

Princeton University has voted to reintroduce proctors for all in-person examinations from July 1, ending an honor-code practice that began in 1893 and relied on student self-policing.

Princeton University has voted to reintroduce proctors for all in-person examinations effective July 1, 2026. The change ends a practice dating back to 1893, when the university established an honor code that prohibited proctoring and relied on students to pledge honesty and report peers.

Why the shift?

Faculty and university officials cited the spread of technologies — notably AI-powered tools and small, easy-to-conceal devices — that have made misconduct harder for students to observe and report. Princeton acknowledges that the old trust-based system no longer matches the realities of contemporary exam settings.

What do the numbers show?

Princeton’s 2025 senior survey highlighted the scope of the problem:

  • 29.9% of respondents admitted to cheating on at least one occasion;
  • 44.6% knew of violations that they did not report;
  • only 0.4% reported a peer.

These figures indicate that while dishonesty is not new, reporting of peers is extremely rare and the informal enforcement mechanisms have weakened.

Implications for education

Reintroducing proctoring aims to reduce visible instances of cheating in the short term. Faculty and experts caution, however, that proctoring alone does not rebuild educational integrity: long-term solutions will likely require redesigning assessments around judgment, verification, and collaboration with AI, rather than trying to preserve formats created for a pre-AI classroom.

Next steps

Alongside bringing back proctors, Princeton plans to discuss modernizing assessment practices and rebuilding trust in ways that account for AI’s presence on campus. The university will announce further implementation details in the coming period.