The state noise rule identifies maximum allowable noise levels using the L10 and L50 values. These noise area classifications group areas according to noise sensitivity. The MPCA noise rule (Minnesota Rules Chapter 7030) classifies land uses into three categories or noise area classifications. Like many states, Minnesota regulates both daytime (7:00 a.m.-10:00 p.m.) and nighttime (10:00 p.m. The regulation has several interesting features. The Minnesota Pollution Control Agency (MPCA) regulates environmental noise in Minnesota. Regulating Environmental Noise in MinnesotaĪSA/NOISE-CON 2005 Meeting, Minneapolis, MN
