What is the maximum number of M allotments a member assigned to flying duty must register?

The correct answer is two because members assigned to flying duty are required to register a maximum of two M allotments. The M allotment system is used to manage and allocate funds for specific purposes related to flying duty assignments, such as travel expenses or other operational costs. This requirement is set to ensure that aircrew have sufficient financial support for their duties while maintaining a manageable level of complexity in financial planning. By limiting the number of M allotments to two, it facilitates easier tracking and administration of funding related to flying duty. This policy helps in enforcing clear financial accountability and prevents excessive fragmentation of allotments, which could complicate budgeting and resource allocation for service members in flying roles.