"Sec. 1   RCW 79A.80.020 and 2013 2nd sp.s. c 15 s 1 are each amended to read as follows:
     (1) Except as otherwise provided in this chapter, a discover pass is required for any motor vehicle to:
     (a) Park at any recreation site or lands; or
     (b) Operate on any recreation site or lands.
     (2) Except as provided in RCW 79A.80.110, the cost of a discover pass is thirty dollars. Every four years the office of financial management must review the cost of the discover pass and, if necessary, recommend to the legislature an adjustment to the cost of the discover pass to account for inflation.
     (3) A discover pass is valid for one year beginning from the date that the discover pass is marked for activation. The activation date may differ from the purchase date pursuant to any policies developed by the agencies.
     (4) Sales of discover passes must be consistent with RCW 79A.80.100.
     (5) The discover pass must contain space for two motor vehicle license plate numbers. A discover pass is valid only for those vehicle license plate numbers written on the pass. However, the agencies may offer for sale a family discover pass that is fully transferable among vehicles and does not require the placement of a license plate number on the pass to be valid. The agencies must collectively set a price for the sale of a family discover pass that is no more than fifty dollars. A discover pass is valid only for use with one motor vehicle at any one time.
     (6)(a) One complimentary discover pass must be provided to a volunteer who performed twenty-four hours of service on agency- sanctioned volunteer projects in a year. The agency must provide vouchers to volunteers identifying the number of volunteer hours they have provided for each project. The vouchers may be brought to an agency to be redeemed for a discover pass.
     (b) Married spouses under chapter 26.04 RCW may present an agency with combined vouchers demonstrating the collective performance of twenty-four hours of service on agency-sanctioned volunteer projects in a year to be redeemed for a single complimentary discover pass."