by the United States government, United States Code — Title 42, Chapter 103…
“ To the extent practicable, the highest priority facilities shall be designated individually and shall be referred to as the “top priority among known response targets”, and, to the extent practicable, shall include among the one hundred highest priority facilities one such facility from each State which shall be the facility designated by the State as presenting the greatest danger to public health or welfare or the environment among the known facilities in such State. A State shall be allowed to designate its highest priority facility only once. ”
