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.