The department of natural resources is designated as the official agency for surveys and maps. The commissioner of public lands shall appoint an advisory board of five members, the majority of whom shall be registered professional engineers or land surveyors, who shall serve at the pleasure of the commissioner. Members of the board shall serve without salary but are to receive travel expenses in accordance with RCW
43.03.050 and
43.03.060 as now existing or hereafter amended while actively engaged in the discharge of their duties.