Originally Posted by BoilerUP

COM-ASMEL, CFI-AIM.

These are the most widely used (and understood) acronyms for the Commercial Airplane Single & Multi-Engine Land and CFI-Airplane/Instrument/Multi qualifications.

In the world of professional flying, its assumed that if you have a Commercial then you also have an instrument rating; the only circumstance I've ever seen where this isn't the case is rotary wing.