Not necessarily. If a data correction or adjustment has been made that should be permanent, it will carry forward to the next and following years until such time as there is a change in the property and/or a change in the valuation methodology that affects that property. Therefore, it would not be necessary to reapply the following year(s).
If, however, a one-time adjustment were granted just for the current year, the assumption is that the adjustment does not carry forward into the next year. If the property owner then feels that the valuation is overstated in the following year, he/she must submit a new application.