LMO and LMIA are basically the same thing except that an LMIA is a new type of LMO that Service Canada will be processing from now on in place of the old LMOs. All new LMOs as of June 20 are referred to as LMIA since they're processed according to new guidelines that came into effect that day. All LMOs that were issued before that are still usable, but from now on, Service Canada will process only LMIAs under more stringent rules. The 2-year maximum rule is now in effect for everyone requiring an LMIA.