As the MPO, are we required to update an MTP and TIP that was approved prior to October 1, 2018, to reference the TAM targets?
No. For plans adopted before October 1, 2018, there is no requirement to include TAM performance measures or performance targets as part of your plans and programs. Please note, however, that any amendment of your MTP or TIP after October 1, 2018, will trigger the requirement to incorporate transit performance management components into the planning process. NOTE: Other Performance Management targets (Highway Safety, Bridge, Pavements, etc.) will each have their own implementation dates.