(1) There is exempted from the tax imposed by this chapter, the use of fuel for:

   (a) Street and highway construction and maintenance purposes in motor vehicles owned and operated by the state of Washington, or any county or municipality;

   (b) Publicly owned fire fighting equipment;

   (c) Special mobile equipment as defined in RCW 46.04.552;

   (d) Power pumping units or other power take-off equipment of any motor vehicle which is accurately measured by metering devices that have been specifically approved by the department or which is established by any of the following formulae:

   (i) Pumping propane, or fuel or heating oils or milk picked up from a farm or dairy farm storage tank by a power take-off unit on a delivery truck, at a rate determined by the department: PROVIDED, That claimant when presenting his or her claim to the department in accordance with this chapter, shall provide to the claim, invoices of propane, or fuel or heating oil delivered, or such other appropriate information as may be required by the department to substantiate his or her claim;

   (ii) Operating a power take-off unit on a cement mixer truck or a load compactor on a garbage truck at the rate of twenty-five percent of the total gallons of fuel used in such a truck; or

   (iii) The department is authorized to establish by rule additional formulae for determining fuel usage when operating other types of equipment by means of power take-off units when direct measurement of the fuel used is not feasible. The department is also authorized to adopt rules regarding the usage of on board computers for the production of records required by this chapter;

   (e) Motor vehicles owned and operated by the United States government;

   (f) Heating purposes;

   (g) Moving a motor vehicle on a public highway between two pieces of private property when said moving is incidental to the primary use of the motor vehicle;

   (h) Transportation services for persons with special transportation needs by a private, nonprofit transportation provider regulated under chapter 81.66 RCW;

   (i) Vehicle refrigeration units, mixing units, or other equipment powered by separate motors from separate fuel tanks; and

   (j) The operation of a motor vehicle as a part of or incidental to logging operations upon a highway under federal jurisdiction within the boundaries of a federal area if the federal government requires a fee for the privilege of operating the motor vehicle upon the highway, the proceeds of which are reserved for constructing or maintaining roads in the federal area, or requires maintenance or construction work to be performed on the highway for the privilege of operating the motor vehicle on the highway.

   (2) There is exempted from the tax imposed by this chapter the removal or entry of special fuel under the following circumstances and conditions:

   (a) If it is the removal from a terminal or refinery of, or the entry or sale of, a special fuel if all of the following apply:

   (i) The person otherwise liable for the tax is a licensee other than a dyed special fuel user or international fuel tax agreement licensee;

   (ii) For a removal from a terminal, the terminal is a licensed terminal; and

   (iii) The special fuel satisfies the dyeing and marking requirements of this chapter;

   (b) If it is an entry or removal from a terminal or refinery of taxable special fuel transferred to a refinery or terminal and the persons involved, including the terminal operator, are licensed; and

   (c)(i) If it is a special fuel that, under contract of sale, is shipped to a point outside this state by a supplier by means of any of the following:

   (A) Facilities operated by the supplier;

   (B) Delivery by the supplier to a carrier, customs broker, or forwarding agent, whether hired by the purchaser or not, for shipment to the out-of-state point;

   (C) Delivery by the supplier to a vessel clearing from port of this state for a port outside this state and actually exported from this state in the vessel.

   (ii) For purposes of this subsection (2)(c):

   (A) "Carrier" means a person or firm engaged in the business of transporting for compensation property owned by other persons, and includes both common and contract carriers; and

   (B) "Forwarding agent" means a person or firm engaged in the business of preparing property for shipment or arranging for its shipment.

   (3) Notwithstanding any provision of law to the contrary, every urban passenger transportation system, and carriers as defined by chapters 81.68 and 81.70 RCW, shall be exempt from the provisions of this chapter requiring the payment of special fuel taxes. For the purposes of this section "urban passenger transportation system" means every transportation system, publicly or privately owned, or owned by or operated on behalf of a regional transit authority authorized to provide public transportation services extending across the corporate limits between two or more counties, having as ((its principal)) a source of revenue the income from transporting persons for compensation by means of motor vehicles ((and/or)) or trackless trolleys, each having a seating capacity for over fifteen persons over prescribed routes in such a manner that the routes of such motor vehicles ((and/or)) or trackless trolleys, either alone or in conjunction with routes of other such motor vehicles ((and/or)) or trackless trolleys subject to routing by the same transportation system, shall not extend for a distance exceeding twenty-five road miles beyond the corporate limits of the county in which the original starting points of such motor vehicles are located((: PROVIDED, That)), except for regional transit authority system routes, which may extend further than twenty- five road miles beyond the corporate limits of the county in which the original starting points of such motor vehicles are located. However, no refunds or credits shall be granted on special fuel used by any urban transportation vehicle, or vehicle operated pursuant to chapters 81.68 and 81.70 RCW, on any trip where any portion of said trip is more than twenty-five road miles beyond the corporate limits of the county in which said trip originated, unless such trip is provided by or on behalf of a regional transit authority."

EFFECT: Exempts a regional transit authority from the special fuel tax even if its bus routes exceed 25 miles beyond the county limits where the buses started. Allows refunds or credits on special fuel used in bus trips extending more than 25 miles beyond the county limits where the trips originated, if the trips are provided by or on behalf of a regional transit authority. Replaces the requirement that an urban transportation system have bus fares as its "principal source of revenue" with the requirement that such a system have bus fares as "a source of revenue".