Altering the computation of the homeowner's property tax credit for all taxable years beginning after June 30, 2006, based on a specified cost-of-living adjustment percentage; increasing from $150,000 to $250,000 the maximum assessed value of a dwelling on which the homeowner's property tax credit is calculated; requiring the Department of Assessments and Taxation to determine the cost-of-living adjustment percentage by a specified date under specified circumstances; etc.