Final answer:
Some prior provisions are no longer in the AIA code due to changes in safety regulations, societal values, legal standards, and the evolution of design concepts and technologies.
Step-by-step explanation:
The question asks why some prior provisions are no longer included in the American Institute of Architects (AIA) Code of Ethics and Professional Conduct. This involves understanding the evolution of architecture and building codes, which are influenced by many factors such as safety requirements, structural and design innovation, changes in lifestyle and family dynamics, and legal developments.
For instance, new safety regulations may replace older ones to improve the safety and livability of homes, as seen in modern developed countries (MDCs). Similarly, legal updates, like those removing discriminatory language or obsolete provisions, ensure the AIA Code reflects current societal values and legal standards.