The operability, reliability and maintainability contract was awarded to Clough AMEC. The conditions determining operability and committability must be specified. The variable pitch fan will facilitate low pressure ratio fan operability. Operability requirements are not enforced for NEBS Level 1 certification. The SETT seems to meet flow function and operability design points. Another capacity consideration is related to operability of the system. The importance of operability as a requirement of claims is disputed. In 2007, its operability (with some "chugging") was demonstrated at 11&colon;1 throttle ratios. The Railroad Club had fired the engine and it was nearing operability. Prefectura is also responsible for the International Port of Montevideo operability. However, the railways rebounded quickly after the quake, reaching 80% operability in one month.