Singapore IMDA had published 2 Technical Standards which is

TS CBS –   Technical Specification for Cellular Base Station and Repeater System

TS CMT –  Technical Specification for Cellular Mobile Terminal

Below is the link to the new standards.

From now on it is required to follow the latest Technical specifications for IMDA Certifications.

 https://www.imda.gov.sg/-/media/imda/files/regulation-licensing-and-consultations/ict-standards/telecommunication-standards/radio-comms/imda-ts-cmt.pdf

https://www.imda.gov.sg/-/media/imda/files/regulation-licensing-and-consultations/ict-standards/telecommunication-standards/radio-comms/imda-ts-cbs.pdf