The MPL is airline specific only to the extent that an airline must be involved in the training. Appendix 1 to JAR-FCL 1.520 & 1.525 states "Approval for a MPL(A) training course shall only be given to a FTO of a JAR-OPS 1 operator or a FTO having a specific approved arrangement with a JAR-OPS 1 operator. The licence shall be restricted to that specified operator until completion of the airline operator’s conversion course in accordance with JAR-OPS 1 Subpart N." Consequently, once the airline's operator conversion course is complete, the candidate may be cut loose to make his way in the world as best he can with a qualification that allows him to fly only as a co-pilot in a multi-pilot aeroplane and only in aircraft operated by the JAR-OPS operator with whom he completed the OCC. What better way to spend circa £100k?