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Regulatory Agencies <br />Several agencies have noise regulations for different noise sources. Noise regulations are either source <br />standards or receiver -based standards. <br />Department of Natural Resources (DNR) - The Minnesota DNR has source standards for snowmobiles, <br />motorboats, personal watercraft and off - highway vehicles. For more information see: <br />http://www.dnr.state.mn.us/index.html. <br />Federal Aviation Administration (FAA) - The FAA has source regulations for commercial jet engines. All <br />commercial jet engines must meet noise emission criteria prior to being certified for flight. <br />Metropolitan Airport Commission (MAC) - The MAC is responsible for all noise issues related to the <br />Minneapolis St. Paul International Airport and reliever airports. For more information see: <br />http: / /www.macnoise.com /. <br />Minnesota Department of Transportation (Mn /DOT) — Mn/DOT is responsible for state highway noise <br />mitigation. For more information see: http: / /www. dot. state .mn.us /environment/index.html. <br />Federal Highway Administration (FHWA) - The FHWA does not have actual noise standards, but has a <br />70 dBA Li Oguideline that is used to determine federal funding for noise abatement on highway projects. <br />Federal Railroad Administration (FRA) - Regulation of railroad related noise is the responsibility of the <br />FRA. For more information see: http: / /www.fra.dot.gov /. <br />Housing and Urban Development (HUD) - HUD has noise regulations that establish acceptable noise zones <br />for HUD housing projects. <br />Occupational Safety and Health Administration (OSHA) - OSHA has regulations to protect against hearing <br />loss in the workplace. These are "dose standards" that restrict the amount of noise an employee receives over a <br />period of time, such as eight hours. <br />Local Agency - A local governing agency, such as a city or county, has some responsibility for enforcing <br />noise standards and may have an ordinance regulating noise levels. <br />Minnesota Pollution Control Agency (MPCA) - The MPCA has a receiver -based standard intended to limit <br />noise levels and protect the health and welfare of the general public. <br />A Guide to Noise Control in <br />Minnesota • October 2008 Minnesota Pollution Control Agency <br />13 <br />