Originally designed by Mr Yap Pheng Geck, a former ACS teacher, the ACS Crest is inspired by knightly virtues. 

The crest had been applied to an infinite variety of purposes over the years when the ACS Old Boys' Association recognised the need for the design to be properly documented alongside usage guidelines. 

IMMORTAL assembled the ACS Brand Identity Guidelines and included examples for appropriate use on items including signage, uniforms and flags.