The one that usually responsible for protecting against noise is :
EPA
EPA protected all things from the source that probably caused health disturbance in an environment, which include sound pollution.
The legal process of disposing of a person's estate after her death is called : Probate
The specification of this process as in how to dispose it etc, was determined by that person's will that she written before her death
Hope this helps
A blank is a fake bullet which fires just like a regular bullet but doesn't shoot anything. it's usually used to scare people away.