The Site Improvement Advisory Board is a regulatory board that takes action on regulations that govern residential development in New Jersey. 

There are 12 members, each of whom holds a designated seat, as follows:  professional planner for a governmental entity; professional planner in private practice; New Jersey Society of Professional Engineers; New Jersey Society of Municipal Engineers; New Jersey State Association of County Engineers; New Jersey Planning Officials; New Jersey Council on Affordable Housing; New Jersey Builders Association; New Jersey Institute of Technology; New Jersey League of Municipalities; Commissioner of Community Affairs (ex officio); and Director, Division of Codes and Standards (ex officio).  The terms are four years; the membership list follows: