List of census tracts associated with Central Business Districts (CBD)

Hello! I am looking for a list of Central Business Districts (CBDs) and the corresponding Census Tracts that make up the CBDs. In this Census paper, there is a link to to a dataset that appears to be what I am looking for: But unfortunately, this link appears to be dead.

Does anyone know where I can find such a list of CBDs and associated tracts on the new Census website or elsewhere? Thanks!