The State Tax Commission may correct the effect of an incorrect taxpayer report and may add omitted real or personal property for the assessment year of discovery and for either, or both, of the two assessment years that immediately precede the assessment year that it makes its discovery. What the State Tax Commission considers to be omitted property or an incorrect report within the meaning of Section 154 (MCL 211.154) is addressed in the STC policy communication below. Click on the links below to find out more information on 154 Petitions, omitted or incorrectly reported property.