WE PROPOSE TO PERFORM A COMPREHENSIVE ANALYSIS OF ALL AVAILABLE OCCULTATION OBSERVATIONS OF URANUS' NARROW RINGS IN ORDER TO OBTAIN NEW INSIGHTS INTO THE DYNAMICS OF THE RING SYSTEM AND PLACE IMPROVED CONSTRAINTS THE INTERNAL STRUCTURE OF THE PLANET. THE MOST RECENT DETAILED ORBIT MODEL FOR THE URANIAN RINGS (FRENCH ET AL. IN THE U.AZ. PRESS BOOK URANUS FROM 1991) USED DATA OBTAINED BETWEEN1977 AND 1986. THE INCLUSION OF PREVIOUSLY UNPUBLISHED URANUS GROUND-BASED AND HST OCCULTATION OBSERVATIONS WILL EXTEND THE TIME BASELINE TO 2002 AND INCREASE THE NUMBER OF INDIVIDUAL RING MEASUREMENTS BY MORE THAN 50%.