Boulder, Colorado, Sets the Maximum Number of Decibels Permitted by a Source

Multiple Choice

Boulder, Colorado, sets the maximum number of decibels permitted by a source from 7 a.m. to 11 p.m. in a residential area to be 55dBA. One exception is if the sound was made by an animal. This is an example of

A) a technology standard
B) an emissions standard
C) an ambient standard
D) a property rights standard