326.6  Proportional registration of fleets.
  The department may, pursuant to section 326.5, provide for proportional registration between this state and other jurisdictions of fleets of commercial vehicles owned by residents or nonresidents engaged in interstate commerce or simultaneously engaged in interstate and intrastate commerce.
  1.  The owners of fleets of commercial vehicles subject to proportional registration under apportionment agreements negotiated by the department shall file a sworn statement with the department which shall contain the following information and such other information as the department may require:
  a.  Total fleet miles for the preceding year.
  b.  In-state miles for the preceding year.
  c.  A description and identification of each vehicle which is part of the fleet for which proportional registration is sought.
  2.  The dollar amount of registration fees due this state for each fleet subject to proportional registration shall be computed as follows:
  a.  Divide total fleet miles during the preceding year into in-state miles during the preceding year to determine the percentage of total fleet mileage allocable to this state.
  b.  Determine the sum total amount necessary to register each and every vehicle in the fleet based on the annual registration fees prescribed in chapter 321.
  c.  Multiply the percentage obtained under paragraph “a” of this subsection by the sum total obtained under paragraph “b” of this subsection.
  d.  The product so obtained under paragraph “c” of this subsection shall be the amount payable by the owner for proportional registration of the fleet for the registration year. Payment of registration fees shall be made in accordance with section 321.134, subsection 2, or a fleet owner on a renewal registration may pay a fee equal to one-half of the applicable fee and post a surety bond, certificate of deposit, or letter of credit, equal to one-half of the applicable fee at the time of the first installment. Payment of the first installment entitles an owner to the issuance of full-year credentials. The second installment shall be paid by July 15. If the second installment is not paid by July 15, the department shall file claim against the security for payment of fees and penalties due and the owner shall not be entitled to elect the installment payment option for the following year. Excess surety moneys received shall be refunded minus a fifty dollar administration fee.
  3.  The department may negotiate apportionment agreements on either a vehicle or a dollar basis. In apportionment on a vehicle basis, a sufficient number of vehicles shall be registered to produce total fee payments not less than an amount obtained by applying the proportion of in-state fleet miles to total fleet miles to the fees which would otherwise be required for total fleet registration in this state.
[C71, 73, 75, 77, 79, 81, §326.6]
90 Acts, ch 1230, §89