IGF is the acronym for Inherently Governmental Function which is defined as a function so intimately related to public interest that it must be performed by government personnel and not by government contractors. Examples of inherently governmental functions can be found in the Federal Acquisition Regulations, subpart 7.5.
Until October 2017, the contract-reporting system (FPDS-NG) did not have a specific field to capture the IGF information so agencies reported IGF data in the Award Description field. After October, 2017, the Inherently_Governmental_Function field was added to FPDS-NG and now appears in the data download on USAspending.gov
Below are explanations for each of the IGF groups:
Activities that are “closely associated” with the performance of Inherently Governmental Functions.
Activities that are “critical functions” to the completion of an agency’s mission.
Activities that are functions “other” than inherently governmental functions.
IGF::CL,CT::IGF or IGF::CT,CL::IGF
Activities that are “closely associated” to inherently government functions and are “critical” to the agency’s mission.