The list of Thematic Objectives (TO)/Investment Priorities (IP) (1) in the 'Investment Priorities' Table of each S2 Priority Axis (2) is taken from the list of TO and IP defined under S1 - Table 1 (3):
For REGIO Programmes the list does not contain only ERDF, it contains both ERDF and CF Investment priorities.
The ERDF ones have a code with the following format <number><alphabetical character> like 2a, 2b, 3c.
The CF ones have a code with the following format <number><roman number> like 6i, 6ii, 6iii, 6iv.