<\/p>\n
Building departments review plans submitted to them before construction, issue permits or not and inspectors verify compliance to these standards at the site during construction. The City of Chicago remains the only municipality in America that continues to use a building code the city developed on its own as part of the Municipal Code of Chicago. At some point in time all major cities in the United States had their own building codes. The practice of developing, approving, and enforcing building codes varies considerably among nations. In Canada, national model codes are published by the National Research Council of Canada. The current energy codesclarification needed of the United States are adopted at the state and municipal levels and are based on the International Energy Conservation Code (IECC).<\/p>\n<\/p>\n