Umm.. in my copy of the 2004-2005 regs, on page 8 titled "Definitions you should know", it says:
artificial fly ... a single-pointed hook that is dressed only with fur, feathers, hair, textiles, tinsel, wire or any combination of those materials and to which no external weight or external attracting device is attached. Two or more hooks tied in tandem is not permitted. Where gear is restricted to artificial flies, floats and sinkers may be attached to the line.
Emphasis theirs. Then under "fly fishing", it says:
fly fishing ... angling with a line to which only an artificial fly is attached (floats and sinkers may not be attached to the line).
So your guess is as good as mine.
EDIT: Upon closer inspection, some rivers say "fly fishing only" and some say "artificial fly only". So perhaps the above definitions are not contradictory, though at first glance they seem to be. The Stanley Creek to CNR bridge section is "fly fishing only" so I guess that means no bobbers (err, strike indicators) or split shot.