Uber is getting its supporters organized ahead of a City Council hearing on a proposed ordinance the company says could make or break its operation here. San Francisco-based Uber says it has gathered more than 103,000 signatures on an online petition opposing an ordinance that will stiffen regulations on ride-booking companies. The proposed law would require drivers for UberX, the most commonly used ride-booking service Uber offers, Lyft and other competitors to obtain a chauffeur's license and submit to tougher background checks, including fingerprinting, among other new rules. Ald. Anthony Beale, 9th, chairman of the Committee on Transportation and Public Way, is a chief sponsor of the legislation. Twenty-nine of his colleagues on the council said they supported the bill when he floated it last month. The alderman "has proposed an ordinance that threatens to take all these benefits away from Chicagoans," Uber's petition says.