Busking laws vary from city to city, and enforcement varies from cop to cop.
Some towns ban busking while other towns encourage it.
San Francisco's Fisherman's Wharf has a well-planned set of rules with detailed specifications
in regard to scheduling, performance spots, volume level, amp placement, etc..

Non-amplified music is usually unregulated unless it creates an obvious disturbance.
In places where no specific busking laws exist amplified music is governed by local noise ordinances.
As a general rule continuous loud music is offensive and will cause complaints.
Inconsiderate noise is a nuisance and risks a total ban on busking by the authorities.
Buskers should limit volume levels and duration of performances.

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