http://www.packing.org/gs/batf_school_zone.pdf
As you may recall, this law was found unconstitutional in US
vs. Lopez, and then repassed by Congress with some additional language
requiring the government prove a connection to interstate commerce as
an element of the crime.
The law does provide an exemption for Concealed Carry Permit holders,
see 2(B)(ii),
"if the individual possessing the firearm is licensed to do
so by the State in which the school zone is located or a
political subdivision of the State, and the law of the State or
political subdivision requires that, before an individual obtains
such a license, the law enforcement authorities of the State or
political subdivision verify that the individual is qualified
under law to receive the license;"
The BATF intepretation of the law (see link above) is that this
exemption does not extend to permit holders who are legal to carry in
a given state by virtue of a reciprocity or recognition statute. It
would presumably extend to those with nonresident permits, though.
To make this concrete: If a Florida resident with a Florida CCW permit
carries into Alabama, which (a) recognizes the Florida permit and (b)
has no state provisions barring concealed carry by a permit holder in
a school zone, then that Florida CCW holder is nonetheless still in
violation of Federal law if he or she carries in a school zone. (This
is easy to do, just driving around anywhere.)
It seems likely to me that in 1995, when this law was passed, the
actual intention of Congress was to exempt permit holders. The
reciprocity question was not as prominent then as it is now.
--Jimbo
