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7030.0050 NOISE POLLUTION CONTROL 302 4 services and arrangements) Race tracks Fairgrounds and amusement parks Agricultural Agricultural and related activities Forestry activities and related services (including commercial forest land, timber production, and other related activities) Fishing activities and related services Mining activities and related services Other resource production and extraction All other activities not otherwise listed. Undeveloped and unused land area (excluding noncommercial forest development) Noncommercial forest development Water areas Vacant floor area Under construction Other undeveloped land and water areas. Subp. 3. Exceptions. The noise area classification for a land use may be changed in the following ways if the applicable conditions are met. A. The daytime standards for noise area classification I shall be appliedto noise area classification I during the nighttime if the land use activity does not include overnight lodging. B. The standards for a building in a noise area classification 2 shall be applied to a building in a noise area classification I if the following conditions are met: (I) the building is constructed in such a way that the exterior to interior sound level attenuation is at least 30 dB (A); (2) the building has year-round climate control; and (3) the building has no areas or accommodations that are intended for outdoor activities. C. The standards for a building in a noise area classification 3 shall be applied to a building in a noise area classification I if the following conditions are met: (I) the building is constructed in such a way that the exterior to interior sound level attenuation is at least 40 dB (A); (2) the building has year-round climate control; and (3) the building has no areas or accommodations that are intended for outdoor activities. D. The standards for a building in a noise area classification 3 shall be applied to a building in a noise area classification 2 if the following conditions are met: (I) the building is constructed in such a way that the exterior to interior sound level attenuation is at least 30 dB (A); (2) the building has year-round climate control; and (3) the building has no areas or accommodations that are intended for outdoor acti v ities. Statutory Authority: MS s J/6.07 subds 2,4 History: J} SR 43: 18 SR 614 7030.0060 MEASUREMENT METHODOLOGY. Subpart I. Measurement location. 'Measurement of sound must be made at or within the applicable NAC at the point of human activity which is nearest to the noise source. All measurements shall be made outdoors. Integrated Loss Control, Inc. · (612) 783-9581