Line 13i – Pollution control facilities

For regular tax, you may elect to amortize the basis of a certified pollution control facility over 60 months. For facilities placed in service before 1999, the AMT deduction is figured using the alternative depreciation system (ADS) described in IRC Section 168(g). Use the federal Class Life Asset Depreciation Range System (ADR) under the straight-line method. For facilities placed in service after 1998, the AMT deduction is figured under the modified accelerated cost recovery system (MACRS) using the straight-line method. Enter the difference between your AMT pollution control facilities depreciation and your regular tax pollution control facilities amortization. If your AMT pollution control facilities depreciation is more than your regular tax pollution control facilities amortization, enter the adjustment as a negative amount.