Originally Posted by
Purpleanga
If you have an instrument rating and then you do a multi comm checkride that makes you able to fly twins in IFR. I've never heard of MECI.
From the FARS:
(b)
Limitations. (1) A person who applies for a commercial pilot certificate with an airplane category or powered-lift category rating and does not hold an instrument rating in the same category and class will be issued a commercial pilot certificate that contains the limitation, “The carriage of passengers for hire in (airplanes) (powered-lifts) on cross-country flights in excess of 50 nautical miles or at night is prohibited.” The limitation may be removed when the person satisfactorily accomplishes the requirements listed in §61.65 of this part for an instrument rating in the same category and class of aircraft listed on the person's commercial pilot certificate.
Basically, you have to add the instrument privileges to the commercial, by passing an instrument test at commercial standards, in category and class.