Non-market output refers to goods or services provided free of charge or at prices that are economically insignificant to another unit.
Non-market output (P.13) is subdivided into payments for non-market output (P.131) and other non-market output (P.132).
Market producers record only market output and output for own final use. Non-market producers (which are recorded in sectors general government and non-profit institutions serving households) record mainly non-market output.
ESA 2010, paragraph 3,19, 3.23.