I deal with this question occasionally and I know that any noise that disturbs you neighbors can be a violation of the code and carries a possible fine. However, some noises are specifically prohibited during the day:
Construction noises must stop after between 6pm and 7am emergency or urgent work is excluded.
Power equipment must stop between 9pm and 8 am.
Parking lot sweepers and Garbage collection (in residential areas) must stop between 10p and 7am
Generally it is best to work any noise issues out with your neighbors before it becomes a problem.
You can find more at: http://www.municode.com/