work is handled by house Maintenance Managers. Permanent staff of the BSC is organized into a collective bargaining unit known as the Employee Association. Priority for disadvantaged students The BSC offers priority to students in the UC Berkeley Educational Opportunity Program (EOP) (or equivalent at their respective college or university), students with disabilities, transfer students, undocumented students, and international students studying abroad at a University of California campus. Sustainability At the house or apartment complex level, residents have the option of electing a "WRM" Waste-reduction Manager. These managers are responsible for recycling plastics, glass, paper, cardboard as well as composting. Waster-reduction Managers usually maintain color-coded bins, post information sheets and hold workshops/seminars to help residents make sustainable choices. WRMs can fine residents who do not follow house/apartment sustainability policies. The BSC also incorporates food waste reduction strategies into its food management system, by coordinating collections of compost. Cooperative living is sustainable in the sense that group living involves shared meals and facilities that can contribute to less waste, reduction in resource use, and collaboration in sustainable efforts. Properties The BSC currently operates 20 houses and apartments (of which it owns 16), housing and/or feeding over 1300 students and ranging from small houses of 17 residents to large houses of over 100 residents. The BSC also owns the former site of Barrington Hall, which it leases to a for-profit landlord. Historical buildings BSC properties date back as far as 1904 with several of the buildings are considered to be architectural highlights of the city. Two of them are now considered as architectural landmarks: Cloyne Court built in 1904 and designated by National Register of Historic Places in 1992, and Kingman Hall built in 1914 and designated by Berkeley Landmark Preservation in 1999. BSC's other notable buildings include Ridge House designed by John Galen Howard, and three buildings designed by architect Julia Morgan - Davis Hall, Wolf House and African American Theme House (Castro). Ridge House The Ridge House is a faux Tudor mansion built in 1906 during the Beaux-Arts architecture movement by John Galen Howard. Who was supervising architect of the Master Plan for the University of California, Berkeley campus, and founding the University of California's architecture program. Among his buildings are the Campanile, California Memorial Stadium, Sather Gate, and the Hearst Greek Theatre. He was also the architect of another BSC house - Cloyne Court Hotel. The Ridge House is