"Hooks and Lines – An angler may use only one line, unless
otherwise stated in the Regulations. Two lines may be used
when angling from a boat in parts of the Great Lakes (see
Exceptions to the General Regulations) and for ice fishing in
many areas (see Ice Fishing, page 5). A fishing line must not
have more than four hooks attached. Where an artificial
lure is used, each double or treble hook attached to it is
considered to be one hook. In all other situations, a double
hook counts as two hooks; and a treble hook counts as
three hooks."