‹ Category 4 CRA-1.1.16 › CRA-1.1.15 Past version: Effective from 01 Apr 2019 to 31 Mar 2023 To view other versions open the versions tab on the right Category 4 licensees may undertake one or more regulated crypto-asset service, as listed below: (i) Operate a licensed crypto-asset exchange; (ii) Crypto-asset custody service. Added: April 2019 ‹ Category 4 CRA-1.1.16 ›