Bifen IT is labeled for "spot" treatment of carpets indoors for ticks, but not for fleas. What that means is that you can treat a 2" x 2" area and then move over a few inches and do another spot, and another and another if that makes any sense. Leave it to the EPA to come up with some crazy rules like this. Again, Bifen IT is not labeled for indoor use for fleas.
Bifen IT is not labeled for on animal application.
Here is a link to the directions and label - http://www.epestsupply.com/images/Pro...