California Code, Education Code - EDC § 1774

(a) The county superintendent of schools may establish a county teachers' library and expend from the county school service fund such amounts as are necessary for the purchase of books therefor and for the payment of the necessary expenses of maintenance thereof.

(b) If there is a county library in any county, the county superintendent of schools may enter into an agreement with the county library for the transfer to it of all books and other property belonging to the county teachers' library and may order such sums to be transferred from the county school service fund as are necessary for expenditure for the purchase and maintenance of books of professional interest to teachers. Thereupon the teachers' library shall be administered as a part of the county library.