At the conclusion of the public hearing, the City Council shall further consider the proposed budget, make any revisions that it may deem advisable, and, on or before the first day of the fiscal year, adopt the budget by a vote of at least three of its members. Upon adoption, the budget shall be in effect for the ensuing fiscal year. A copy of the budget, certified by the City Clerk, shall be filed with the City Manager. An additional copy shall remain on file in the office of the City Clerk where it shall be available for public inspection. Copies of the adopted budget shall be made available for the use of City departments.