Laws governing fireplace construction and usage vary by location. Common laws include requiring designated No Burn Days and setting emissions requirements for wood-burning fireplaces, according to the National Conference of State Legislatures. Another common type of law offers incentives to consumers who upgrade to cleaner-burning fireplaces.
The website for the National Conference of State Legislatures offers a list of states with fireplace laws, and the website for the Environmental Protection Agency provides a list of both state and local bodies with such laws. The EPA does not mandate federal regulations for fireplaces, but it does have a voluntary program for builders and consumers who want to make or install new fireplaces and retrofits to significantly reduce pollution.