Abstract
AICP members are subject to the AICP Code of Ethics (updated in March 2005, the new code took effect on June 1, 2005; see www.planning.org/ethics/conduct.html for the current version) and APA members are asked to acknowledge, but are not mandated to follow, the Ethical Principles in Planning (adopted in 1992; see www.planning.org/ethics/ethics.html). In addition, other professionals involved in planning and zoning—including lawyers, engineers, and architects—are also governed by various national and state professional codes of conduct.