Back to Blog
ARE Overview5 min read

Architecture Ethics and NCARB Rules of Conduct: What You Need to Know for the ARE

NCARB's Model Rules of Conduct, the AIA Code of Ethics, the architect's obligations to the public, to clients, and to the profession, and how ethics and professional conduct are tested across ARE divisions.

February 23, 2026

Professional Ethics Is Not Just Philosophical - It Has Specific Rules with Professional Consequences

Architectural ethics encompasses both the broad philosophical foundations of professional responsibility and the specific, codified rules that govern architect conduct. Two documents define the ethical framework for licensed architects in the United States: the NCARB Model Rules of Conduct (the basis for state licensing board enforcement, applicable to all licensed architects) and the AIA Code of Ethics (applicable to AIA members, enforceable through AIA's National Ethics Council). While the philosophical content of these documents overlaps considerably, understanding their structure, their specific provisions, and how they are enforced is important for ARE candidates - ethical obligations are tested across the ARE, most explicitly in PcM, but also in PjM and CE where specific professional conduct questions arise in the context of client relationships, contract administration, and project disputes.

NCARB Model Rules of Conduct

NCARB publishes Model Rules of Conduct that most state licensing boards adopt in whole or with minor modifications. The Model Rules are organized around three general obligations: (1) obligations to the public (competence, disclosure, reporting misconduct, compliance with laws, avoiding fraud); (2) obligations to clients and employers (acting in the client's interest, honest communication, competence, avoiding conflicts of interest, confidentiality); and (3) obligations to the profession (maintaining integrity, supporting the licensing process, avoiding aiding unlicensed practice). These rules are enforceable by the state licensing board and violations can result in license suspension, revocation, or other disciplinary action.

AIA Code of Ethics

The AIA Code of Ethics applies to AIA members and is organized into five canons: (1) General Obligations - honesty, fairness, and competence in all professional dealings; (2) Obligations to the Public - responsibility for public welfare, environmental stewardship; (3) Obligations to the Client - competent service, communication of material information, conflict of interest disclosure; (4) Obligations to the Profession - advancement of the profession, mentoring, support of licensing; (5) Obligations to Colleagues - fair treatment of employees, contractors, and collaborators. The AIA Code is enforced by the AIA National Ethics Council, with possible outcomes ranging from censure to expulsion from AIA membership.

Conflicts of Interest

A conflict of interest exists when the architect has a personal or financial interest that could compromise their ability to serve the client's interests impartially. Common conflicts include: financial interest in a contractor or supplier; ownership of property involved in the project; personal relationship with a bidding contractor; or simultaneous representation of parties with competing interests. The ethical obligation is to disclose the conflict to the client; if the conflict is significant, the architect may be required to withdraw from the project. Disclosure alone satisfies the ethical requirement in cases where the conflict, once disclosed, does not prejudice the architect's professional judgment.

Key Exam Points

  • NCARB Model Rules: three obligation areas - public, client/employer, profession; enforced by state licensing boards.
  • AIA Code of Ethics: five canons; enforced by AIA National Ethics Council; applies to AIA members.
  • Title "architect": protected by law; unlicensed use violates state law and supporting unlicensed practice violates ethics rules.
  • Conflict of interest: disclose to client; may require withdrawal if significant.
  • Public health, safety, and welfare: paramount obligation when professional duties conflict with other interests.

Start Studying on AREprep

AREprep covers all six ARE 5.0 divisions with flashcards and practice exams built around the actual NCARB exam guides - so every hour you study is targeted at what the exam actually tests.

Ready to put this into practice?

AREprep has 400 original flashcards, 30 timed mini exams, and 3 full-length simulations for every ARE division.