California Code, Insurance Code - INS § 5056

Such insurer shall have not less than seven, nor more than 11 directors, a majority of whom shall constitute a quorum to do business.

The by-laws or the articles may provide or be amended to provide for either concurrent terms of one year for all directors or staggered terms of not more than five years.  If provision is made for staggered terms, such terms shall, except for the first directors elected for staggered terms, be uniform for all directors and so arranged that as nearly equal a number of directors as is feasible shall be elected each year.

The directors shall be elected by ballot from the members of the insurer.  They shall hold office for the terms for which they were elected, and until their successors are elected and qualified.