The official is read by some of the most influential members of the construction industry and related manufacturers. As the only publication produced by IAPMO for public distribution, Official provides cutting-edge news and views of association leadership and is the first source for breaking information on proposed code changes and other developments. Quarterly circulation of Official in print and electronic is in excess of 34,000, with a unique industry readership comprised of primary plumbing and mechanical inspectors across the United States.