does not expire until the date specified for renewal of the registration under section 3 of this chapter, as amended by P.L. 156-1986. However, the registrant is liable for a prorated renewal fee proportionate to the fraction of the renewal period specified under section 3 of this chapter, as amended by P.L. 156-1986, that the extended registration is in effect.
the amount of the prorated fee applicable to the registrant's extended registration.
IC 35-48-3-3.1