The work of keeping something in proper condition, care or upkeep including: taking steps to avoid something breaking down (preventative maintenance) and bringing something back to working order (corrective maintenance). Some international contracts as the international distribution contracts include a clause of after-sales services and maintenance: The Distributor undertakes to carry out with its own staff and means, and assume the costs of, and adequate after-sales and maintenance service for all Products sold within the Territory. The Supplier shall provide the Distributor with the spare parts and other means required to service the warranty conditions of the Products. See also after-sale service. International Distribution Contract.