RIVERSIDE, Calif. - The bankrupt City of San Bernardino, Calif., on Oct. 28 filed a brief in the U.S. Bankruptcy Court for the Central District of California opposing a motion by the California Public Employees' Retirement System (CalPERS) seeking certification of a direct appeal to the Ninth Circuit U.S. Court of Appeals regarding the city's eligibility to file for Chapter 9 bankruptcy (In Re: San Bernardino, Calif., No. 12-28006, Chapter 9, C.D. Calif. Bkcy.).