Example: An application is filed with the assessor on or before August 1, 2016, for farmland assessment for the tax year 2017. On November 15, 2016, a change in use of the land takes place. The assessor, knowing of the change of use, will deny the application and value and assess the land for the tax year 2017 in the same manner as other real property in the taxing district. If the assessor is unaware of such change before he files his assessment list and duplicate on January 10 following, then the county board of taxation, if it has knowledge of the change before the tax roll becomes final, will revoke the application and assess the land in the same manner as other real property in the taxing district.
Example: A change in use takes place on November 15, 2016, but is not discovered by the assessor or the county board of taxation until June 1, 2017. In that event, the assessor will enter an added assessment against the land on the "Added Assessment List" for 2017, in accordance with (b) above. In addition, he or she shall impose roll-back taxes using the regular, not the alternative omitted procedure, for such of the tax years 2016, 2015, and 2014, in which the land was assessed under the Act.
N.J. Admin. Code § 18:15-8.2