3.   As used in this act:

   "Department" means the Department of Transportation.
 
   "Highway" means a highway which is designated part of the Interstate System as provided in Title 23 of the United States Code, or is a limited access highway as defined in section 1 of P.L.1945, c.83 (C.27:7A-1).
 
   "School" means a public or nonpublic school containing any of the grades kindergarten through 12.
 
   L.2007, c.308, s.3.