Here we go:
"Sec. 2.1 Requirements and application.
(a) * * *
(3) * * *
(iii) Any person who maintains a total of three (3) or fewer breeding female dogs, cats, and/or small exotic or wild mammals, such as hedgehogs, degus, spiny mice, prairie dogs, flying squirrels, and jerboas, and who sells only the offspring of these dogs, cats, or small exotic or wild mammals, which were born and raised on his or her premises, for pets or exhibition, and is not otherwise required to obtain a license. This exemption does not extend to any person residing in a household that collectively maintains a total of more than three breeding female dogs, cats, and/or small exotic or wild mammals, regardless of ownership, nor to any person maintaining breeding female dogs, cats, and/or small exotic or wild mammals on premises on which more than three breeding female dogs, cats, and/or small exotic or wild mammals are maintained, nor to any person acting in concert with others where they collectively maintain a total of more than three breeding female dogs, cats, and/or small exotic or wild mammals regardless of ownership;"
http://frwebgate.access.gpo.gov/cgi-bin/getdoc.cgi?dbname=2004_register&docid=fr14jy04-1