The first TA Cards were issued on September 21, 2018 and are good until December 31, 2019. New TA Cards will be issued annually starting January 1, 2019 through 2022. There is an overlap (January 1 to December 31, 2019) between the first and the second TA Cards, so during that time you might have different TA projects going simultaneously. The overlap in these first two periods is to allow for planning and execution of TA projects with funding available to ACOs and CPs for the first year of the program, without delaying funding planned for subsequent years.
Please note that both the available TA funding overall and the methodologies for allocating that funding across individual ACOs and CPs may shift from year to year.