Government Code § 27361.5
ARTICLE 5. Fees
(a) As used in Section 27361, a page shall be one printed side of a single piece of paper being 81/2 inches by 11 inches.
(b) A sheet shall be one printed side of a single piece of paper which is not exactly 81/2 inches by 11 inches but not greater than 81/2 inches by 14 inches.