255.15 Rules of regulatory construction.

(a)As used in this Part:#

(1)includes means including but not limited to;#

(2)may means is permitted to or is authorized to;#

(3)may not means is not permitted to or is not authorized to; and#

(4)shall is used in the mandatory and imperative sense.#

(b)In this Part:#

(1)words indicating the singular include the plural;#

(2)words indicating the plural include the singular; and#

(3)words indicating the masculine gender include the feminine.#