London : Règlement no PW-12, art. 2.3(a) — Sound By-law

the sounding of any bell, horn, siren or other warning device on any motor vehicle or vehicle for an unnecessary or unreasonable period of time, except when permitted by law; Vehicle - Disrepair - Maladjustment

• (b) the grating, grinding or rattling sound caused by the condition of disrepair or maladjustment of any motor vehicle or vehicle or part or accessory thereof; Vehicle – Load – Improperly Secured
• (c) the sound created by the operation of any motor vehicle, trailer or other vehicle bearing material, articles or things that are loaded upon such vehicle in such manner as to create excessive noise; Vehicle - Exhaust- except through muffling device
• (d) the sound from the discharge into the open air of the exhaust of any steam engine, internal combustion engine (including the engine of any motor vehicle), or pneumatic device without an effective exhaust or intake muffling device in good working order and in constant operation that prevents excessive noises that are loud or explosive; Vehicle - Speakers
• (e) the sound from or created by any radio, amplifier, loud speaker, public address system, or equipment, device or instrument that emits sound when the same is used or operated from any motor vehicle, trailer or vehicle that is clearly audible at least 8 metres (25 feet) from the vehicle; Attracting attention – to Performance – Advertising
• (f) the sound from or created by any instrument, radio, amplification device, loud speaker, public address system, equipment or device that emits sound when the same is used or operated for the purpose of advertising or for attracting attention to any performance or sale, show or display of goods or services and projects such sound into any street or other public place; Whistle – attached to boiler – other mechanism
• (g) the sound from any steam whistle or air whistle attached to or used in connection with a boiler or other machine or mechanism, except for the purpose of giving notice of the time to commence or cease work, or as a warning of danger; Alarm – Warning Device
• (h) the sounding of any alarm, bell, horn, siren or other warning device for an unnecessary or unreasonable period of time. Prohibitions – deemed - Residential Area