Noise regulation

This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these template messages) The examples and perspective in this article deal primarily with the United States and do not represent a worldwide view of the subject. You may improve this article, discuss the issue on the talk page, or create a new article, as appropriate. (April 2017) (Learn how and when to remove this message) This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Noise regulation" – news · newspapers · books · scholar · JSTOR (August 2010) (Learn how and when to remove this message) (Learn how and when to remove this message)

Noise regulation includes statutes or guidelines relating to sound transmission established by national, state or provincial and municipal levels of government. After the watershed passage of the United States Noise Control Act of 1972,^[1] other local and state governments passed further regulations.

A noise regulation^{[citation needed]} restricts the amount of noise, the duration of noise and the source of noise. It usually places restrictions for certain times of the day.^[2]

Although the United Kingdom and Japan enacted national laws in 1960 and 1967 respectively, these laws were not at all comprehensive or fully enforceable as to address generally rising ambient noise, enforceable numerical source limits on aircraft and motor vehicles or comprehensive directives to local government.

Quiet hours are times during a day or night when there are placed tighter restrictions on unnecessary or bothersome noise. They vary between jurisdictions and areas, but are typically in place during night-time, for example between 23:00 and 07:00,^[3] so as not to interfere with residents sleep. Some noise measurement standards which takes into account different times of the day are the American day-night average sound level (Ldn) standard or the European day–evening–night noise level (L_den) standard. Some jurisdictions also have wider noise restrictions in the weekends or on certain public holidays. Industrial or nightlife areas may be exempt or have fewer restrictions, while private institutions, hotels and universities may place additional restrictions on their guests.