Contributed Services : The receipt of services (not cash) from another entity where such services benefit transit operations and the transit agency is under no obligation to pay for the services
Ilan Kelman (ed.), Vulnerability and Resilience Definitions and References, Version 2, 2007. http://www.islandvulnerability.org/docs/vulnres.pd f, (Vulnr and Resilience - Brit) {524}