Expenditures from the Columbus promotional account may include, and are necessarily limited to the following:

    A.    Membership dues in local, regional, state and national associations of a civic, educational or governmental nature, which have as their purpose the betterment and improvement of municipal operations;

    B.    Direct expenses for travel, meals and lodging in conjunction with municipal business or meetings or organizations to which the municipality belong;

    C.    Expenses incurred in the promotion of economic or industrial development for the municipality, including but not limited to meeting room rental, decoration, meals and travel;

    D.    Commemorative plaques, certificates or objects such as commemorative keys;

    E.    Any other purpose which is deemed by the mayor to directly relate to promotion or betterment of the city. (Prior code § 7-31)