; (c) create and abolish offices, employments, and positions (other than those specifically provided for in this MSC Compact) necessary or desirable for the purposes of the Commission; (d) determine a staffing level for the Commission that is commensurate with the size and complexity of the WMATA Rail System, and require that employees and other designated personnel of the Commission, who are responsible for safety oversight, be qualified to perform such functions through appropriate training, including, without limitation, successful completion of the Public Transportation Safety Certification Training Program; (e) contract for or employ consulting attorneys, inspectors, engineers, and such other experts necessary or desirable and, within the limitations prescribed in this MSC Compact, prescribe their powers and duties and fix their compensation; (f) enter into and perform contracts, leases, and agreements necessary or desirable in the performance of its duties and in the execution of the powers granted under this MSC Compact; (g) apply for, receive, and accept such payments, appropriations, grants, gifts, loans, advances, and other funds, properties, and services as may be transferred or made available to it by the United States government or any other public or private entity or individual, subject to the limitations specified in section 42; (h) adopt an official seal and alter the same at its pleasure; (i) adopt and amend by-laws, policies, and procedures governing the regulation of its affairs; (j) appoint one or more advisory committees