As every year, the 2021 regulations have been published in the ACISPORT ANNUAL.
In the AUTOSTORICAL section you can view all the RDS (Sector Regulations) dedicated to regularity, in particular:
RDS AUTOSTORICAL REGULATIONS - The general rules governing the discipline;
SPORT REGULARITY - The special rules governing the discipline;
CIGE - Italian Major Events Championship
CIREAS - Campionato Italiano Regolarità Autostoriche;
TNR - Trofeo Nazionale Regolaerità;
CIRM - Italian Medium Regularity Championship;