(a) (1) Until the end of the moratorium described in Section 70601 of the Government Code, the board of supervisors of any county may increase, as provided in this section, the amount distributed to its county law library fund from the uniform filing fees listed in Section 6321 whenever it determines that the increase is necessary to defray the expenses of the law library. (2) Any increase in the amount distributed to the law library fund in any county under this subdivision shall not be effective