(1) appoint two separate accounting officers: a financial clerk and a treasurer who shall hold office at the pleasure of the board. The secretary of the library system board or the library system director may be appointed the financial clerk. In the event that either of these officers becomes temporarily incapacitated, the board may appoint one of its members to serve temporarily in either of these positions;

(2) provide a satisfactory minute book for recording the minutes of the meetings of the board of trustees and the proceedings of the annual meeting of the participating libraries. In this minute book the secretary shall record the action of the board on all bills approved for payment or shall refer to a schedule of such bills by date, schedule number and amount approved. This schedule shall be filed as a public record;

(3) provide the financial clerk with a distribution ledger in which he shall record itemized receipts and itemized payments, which shall be classified in each case as is required for the annual financial report;

(4) provide the treasurer with a cashbook in which he shall enter an itemized record of all receipts and payments;

(5) adopt a prenumbered receipt form printed in triplicate, and require the treasurer to acknowledge the receipt of any library funds paid over to his custody by issuing his receipt as follows: a copy to the payer, a copy to the financial clerk and a copy to be retained by the treasurer;

(6) adopt a prenumbered voucher-check and require the use of this form in paying all system obligations except as otherwise provided in paragraph (18) of this subdivision. This form must provide for the signature of the treasurer and may provide for as many additional signatures as the board may require;

(7) adopt, at least 30 days prior to the start of the ensuing fiscal year, an estimate of receipts and appropriations (annual budget) on forms prescribed by the Commissioner of Education, and file such budget with the department within 60 days thereafter;

(8) amend the budget at any time during the fiscal year and provide for appropriations from any additional revenues received;

(9) keep the incurred obligations in each fiscal year within the amounts authorized by the budget and amendments thereto;

(10) settle all accounts of the library system on or before the last day of the fiscal year;

(11) disburse library funds only on the basis of itemized vouchers which have been certified by the claimants or the purchasing agent and audited and approved by the board of trustees except as otherwise provided in paragraph (18) of this subdivision. However, the board of trustees may by resolution determine that vouchers may be audited and approved by a committee comprised of at least three board members or by an individual designated by the board as auditor. Any individual so designated may not hold the office of financial clerk or treasurer and shall be bonded with such penalty and sureties as the board may require;

(12) provide by resolution that amounts due upon contracts, for fixed salaries or for compensation of employees regularly engaged at agreed periodic rates, may be paid without prior audit upon submission to the treasurer of a voucher or payroll duly certified by the library system director or his duly authorized representative;

(13) establish rules and regulations governing the reimbursement of trustees, officers and employees of the system and its member libraries for actual and necessary expenses incurred in the performance of official duties assigned by the trustees of the library system or in attending meetings designated by the library system board of trustees. In lieu of actual and necessary travel expenses, the trustees may establish a mileage rate for the use of personally owned automobiles;

(14) require the treasurer to render monthly reports, showing the following information for the guidance of the board: balance on hand at the beginning of the month; itemized list of receipts during the month; total withdrawals made from the bank account during the month; balance on hand at the end of the month and reconciliation with the bank statement;

(15) require a monthly report from the financial clerk showing amounts of receipts by source and expenditures by budget category for the months and year to date;

(16) cause an annual audit of the treasurer's records to be made either by a committee of the board or by an independent auditor;

(17) provide adequate filing equipment for the preservation and systematic arrangement of all paid and unpaid bills, cancelled checks, bank statements, debit charge slips, contracts and other financial records;

(18) at its discretion, establish a petty cash fund for the purpose of making payment in advance of authorization of properly itemized bills for materials, supplies or services furnished to the library system calling for immediate payment on delivery.

(19) The treasurer shall deposit all moneys within five days after receipt in a depository designated by the trustees. The trustees may authorize the treasurer to deposit or invest moneys not required for immediate disbursement in special time deposit accounts or certificates of deposit issued by a bank or trust company located and authorized to do business in this State, provided that such account or certificate of deposit shall be payable within the time the moneys shall be needed, and provided further that such account or certificate of deposit shall be secured by a pledge of obligations of the United States of America or obligations of the State of New York. Investments may also be made in obligations of the United States of America or of the State of New York, registered or inscribed, when possible, in the name of the system, and payable or redeemable at the option of the system within such time as the proceeds shall be needed, but in any event not later than the end of the fiscal year. Such obligations shall be purchased through, delivered to and held in the custody of a bank or banker designated by the trustees for the deposit of system moneys.