Here's the federal law:
http://www.law.cornell.edu/uscode/text/18/921
18USC921(a)(26)
The term “school” means a school which provides elementary or secondary education, as determined under State law.
(So could be K-12 or 1-12.)
18USC921(a)(25)
The term “school zone” means—(A) in, or on the grounds of, a public, parochial or private school; or
(B) within a distance of 1,000 feet from the grounds of a public, parochial or private school.
Here's the WI law:
http://docs.legis.wisconsin.gov/statutes/statutes/948/605
948.605(1)
(b) "School" has the meaning given in 948.61(1)(b)
(c) "School zone" means any of the following:
1. In or on the grounds of a school.
2. Within 1,000 feet from the grounds of a school.
948.61(1)(b)
http://docs.legis.wisconsin.gov/statutes/statutes/948/61/1/b
"School" means a public school, parochial or private school, or tribal school, as defined in 15.001(15m), which provides an educational program for one or more grades between grades 1 and 12 and which is commonly known as an elementary school, middle school, junior high school, senior high school, or high school.
15.001(15m)
http://docs.legis.wisconsin.gov/statutes/statutes/115/I/001/15m
Tribal school is K-12, with some stipulations on who controls it.
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Yes, having a ccl protects us from persecution for being on public property in the school zone.
But WI ignores the part of the federal "GF"SZ law which allows licensees to be in the school or zone.
Idiots. Endangering children for no good reason.