To exploit the PEP-II facility, a new detector is being designed by a large international collaboration of physicists. The detector, called BABAR, has been approved on the advice of the SLAC Experimental Program Advisory Committee. The collaboration includes some 480 physicists from 10 countries: Canada, China, Finland, France, Germany, Italy, Russia, Taiwan, the United Kingdom and the United States -- and from 78 different institutions. Almost half the collaboration is from the United States. The detector comprises the usual nested set of detector sub-systems to precisely measure the collision point and decay points of the B-meson pairs produced, to measure the momentum and energy of the decay particles, and to determine the nature of the kind of particles in these decays (i.e. electrons, muons, pions, kaons). The machine and detector should be ready to begin the studies of this new frontier in 1999.