The primary function of the California State University is the provision of instruction for undergraduate students and graduate students through the master's degree, in the liberal arts and sciences, in applied fields and in the professions, including the teaching profession. Presently established two-year programs in agriculture are authorized, but other two-year programs shall be authorized only when mutually agreed upon by the Board of Trustees of the California State University and the Board of Governors of the California Community Colleges. The doctoral degree may be awarded jointly with the University of California, or jointly with a private institution of higher education accredited by the Western Association of Schools and Colleges, provided that in the latter case, the doctoral program is approved by the California Postsecondary Education Commission. Faculty research is authorized to the extent that it is consistent with the primary function of the California State University and the facilities provided for that function.