On August 1 2004, Ministerial Decree No. 77/2004 was implemented as a replacement for the Decree of the Director General of Post and Telecommunication No. 92/DIRJEN/94. Through KM 77 Chapter V article 28 it is stipulated that KRAP carries out duties in 2 bands, namely;
1. VHF band 140.7875 Mhz to 143.7875 Mhz
2. HF band 26,960 Mhz to 27,410 Mhz
https://rapi.or.id/ad-art-rapi/
The upshot is, if you want CB in Indonesia, you join RAPI.
As a bonus, you can also operate legally on a small part of the VHF spectrum
They can be contacted here - jz00zzz@rapi.or.id