<P> This provision is a subjective immission control . It is designed to limit the noise disturbance between living units as defined by an enforcement official . One criterion used to evaluate that disturbance is use of plainly audible but at the location of the listener instead of at a specific distance . However, Charlotte, NC (Sec. 15 - 69) limits indoor levels to 55 dB (A) be tween 9am to 9pm and 5 dB less at other times, but only from sound reproducing devices . Salt Lake Valley Health Department (Chapter 4), Minneapolis, MN (Chapter 389), and Albuquerque, NM (Article 9) use levels to existing ambient to define a violation . Albuquerque NM and Omaha, NE (Chapter 17) require that intruding sounds not be audible . Burlington, VT (Chapter 18) requires that renters be supplied with the city noise ordinance . </P> <P> This provision can be both a subjective immission control and an objective emission control . Normally there are daily curfews and in some case weekend curfews . The subjective aspect is to prevent noise disturbance in the adjacent community . The objective aspect is to control the sound output of specific machines . There are four major sources of site noise: (1) direct sound from continually operating equipment such as air compressors; (2) intermittent sound from equipment such as jack hammers; (3) backup alarms; and (4) hauling equipment such as trucks . Air compressor noise is regulated by CFR 204 and backup alarms are regulated by CFR 1926 . Boston, MA (Section 16 - 26.4) permits construction on weekdays between 7am and 6 pm . Madison, WI (Chapter 24.08) limits sound levels to 88 dB (A) at 50 Feet . Miami, FL (Section 36 - 6) considers the noise a noise disturbance if it occurs between 6pm and 8am during the week and any time on Sunday . Dallas, TX (Section 30 - 2 (9)) permits construction in residential zones from 7am to 7pm on weekdays, from 9am to 7pm on Saturdays and Holidays, and prohibits construction on Sundays . Albuquerque, NM (Section 9 - 9 - 8) has a more complex control . It prohibits construction and demolition within 500 feet of noise sensitive properties (residences included) if the equipment sound control devices are less effective than the original equipment and if noise mitigation measures are not used when the levels exceed 90 dB (weighting not specified) or more than 80 dB during the day for three days . </P> <P> This provision is a subjective immission control with a curfew . It is used in residential zones as well as in commercial areas abutting residential zones . Portland, OR (Title 18.10. 030) has several ways to handle these tools . They separate outdoor and indoor use to different maximum levels at the property line . They have a night curfew and separate 5 HP tools from higher powered tools . Madison WI (Chapter 24.08) has similar HP restrictions . Albuquerque, NM (Title 9 - 9 - 7) restricts locations to more than 500 feet from residential and noise sensitive zones . Dallas, TX (Sec. 30 - 2) exempts lawn maintenance tools during daylight hours . Green Bay, WI (Subchapter II--27.201) exempts snow removal tools . </P> <P> This provision is a subjective immission control with a curfew . It is for impulsive sound sources that are not associated with construction activities or shooting ranges . Many communities use the Maximum Permissible Sound Levels criterion (see below), with a correction for the character of the sound . Illinois () sets maximum blasting levels by land use zone and in three time categories . Portland, OR (Section 18.10. 010. F) limits levels to 100 dB (peak) from 7am to 10pm and 80 dB (peak) from 10pm to 7 am . </P>

Information about places where loud noise is prohibited