Youโ€™ve hopped on the Hopkins shuttle to get from Charles Village to Mount Vernon; you were thrilled when the Charm City Circulator let you get downtown for free. Now thereโ€™s a new free shuttle service in town โ€” but there might be a catch.

One of the greatest things about the Hopkins Shuttle (more properly known as the JHMI-Homewood shuttle) is how you donโ€™t really have to be a Hopkins affiliate to take advantage of its gloriously free, relatively reliable transportation. The Blue Jay Shuttle โ€” a revamped, renamed version of the schoolโ€™s security escort van service โ€” will travel along several fixed routes, circling through Hampden, Waverly, and Remington; itโ€™ll hit 72 student-friendly hotspots like the 25th Street Safeway, the Avenue in Hampden, the Waverly Giant, and the Rotunda. Service will start at 5:45 PM, with a fleet of vans embarking every half hour until 11 PM. If youโ€™ve got a smart phone, youโ€™ll be able to track the buses via NextBus, a GPS-based real time transit system.

Which all sounds pretty convenient and great. The catch? According to the schoolโ€™s website, youโ€™ll need a valid Hopkins ID (aka a J-Card) to board. The service isnโ€™t up and running yet (it starts on August 24), so it remains to be seen whether the ID requirement will be in name only (as on the Hopkins shuttle) or a serious necessity (as on the Collegetown Shuttle service).