Papers submitted to TCAS-II must be limited to 5 pages in length, by following the two-column IEEE Transactions format. Starting in September 2020, a minor change has been introduced so that the last column, i.e. the last half page of the manuscript must be reserved only for references. Therefore, the overall paper length is kept the same (5 pages), but 4.5 pages will be used for paper contents and the last half page (last column) will be reserved only for references.
See more details about TCAS-II paper format, style and guidelines for authors here!