<Li> Qualification of individuals or corporations doing the work </Li> <Li> For high structures, anti-collision markers for the benefit of aircraft </Li> <P> Building codes are generally separate from zoning ordinances, but exterior restrictions (such as setbacks) may fall into either category . </P> <P> Designers use building code standards out of substantial reference books during design . 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 . </P>

An organization that establishes model laws which are often adopted by states is