In order to provide counties with alternative placement options, the Department of the Youth Authority is authorized to establish, maintain, or facilitate the development of regional centers, which may be available on a contract basis to counties for the placement of wards. The regional centers, depending on the services needed, may provide, but are not limited to, the following: mental health programs, short-term incarceration and treatment services, and boot camp programs. This section shall not be interpreted to prohibit counties from jointly developing regional centers.