Protective Gear & Inspection Tools

If your child has autism is protective gear legal for him/her to wear?
Ex:Helmet.
Does it vary from state to state?
This is in the US.
Technically speaking Michigan.
Any links would be Great.
I mean would it be legal?
There is no against wearing protective gear and if a doctor states that it is needed it is certainly OK.

Refinery runs out of gas
By Amanda Kerr YORK — Western Refining will still move gasoline and diesel out of Yorktown, but it will only require a skeleton crew. The refinery is dead.
