Forest inventories in Canada are evolving as new technologies are incorporated into the inventory process. Governments and industry are under increasing pressure to reduce inventory costs, while simultaneously producing improved information to support the increasingly complex demands associated with forest management. For forest professionals, keeping up-to-date on technological innovations and understanding the different sources of forest inventory information available (and the associated terminology) can be challenging. Amidst all this change in forest inventories in Canada, there are two acronyms in particular that seem to invite confusion: NFI and EFI. NFI stands for National Forest Inventory and represents a type of inventory with a very specific purpose: an NFI is typically designed to provide high-level information to support national-level forest policy and reporting information needs.