As used in the section 13(b)(15) exemption, the term ``county''
refers to the political subdivision of a State commonly known as such,
whether or not such a unit bears that name in a particular State. It
would, for example, refer to the political subdivision known as a
``parish'' in the State of Louisiana. A place of employment would not be
located in a county, within the meaning of the exemption, if it were
located in a city which, in the particular State, was not a part of any
county.