A. After the hearing and at least seven (7) days prior to the beginning of the budget year, the governing body shall adopt the budget by resolution, or as any charter may require, at the level of classification as defined in Section 17-213 of this title. The governing body may add or increase items or delete or decrease items in the budget. In all cases the proposed expenditures shall not exceed the estimated revenues and appropriated fund balance for any fund.

B. The adopted budget shall be transmitted to the State Auditor and Inspector within thirty (30) days after the beginning of the fiscal year of the municipality and one copy shall be kept on file in the office of the municipal clerk. A copy of the municipality's sinking fund requirements shall be filed with the excise board of the county or counties in which the municipality is located.

C. The adopted budget shall be in effect on and after the first day of the fiscal year to which it applies. The budget as adopted and filed with the State Auditor and Inspector shall constitute an appropriation for each fund, and the appropriation thus made shall not be used for any other purpose except as provided by law.

D. At the time required by law, the county excise board shall levy the taxes necessary for the municipality's sinking fund for the budget year pursuant to Section 431 of Title 62 of the Oklahoma Statutes.