Vt. Stat. tit. 24A § 3-157
The Mayor shall, with the assistance of the other members of the Board of Finance, annually prepare an estimate of the necessary appropriations to cover the expenses of each department and branch of the City government for the next fiscal year, to be known as the "budget," and shall submit said "budget" to the City Council for its guidance and action in making the annual appropriations and the tax levy for such next fiscal year. The Mayor shall submit the "budget" to the City Council on or before June 15 of each year and the City Council shall make the annual appropriations and the tax levy no later than June 30 of each year. The City Council may reduce the items of such budget, but shall not increase them except by two-thirds vote of said City Council. Wherever any appropriation, annual or otherwise, shall be made to any department or branch of the City government, for any specified purpose, no part of such appropriation shall be expended for any purpose other than the one specified, unless authorized by resolution of the City Council or by written permission of the Board of Finance. Nothing herein contained shall authorize the Board of Finance to transfer any appropriation, or any part of any appropriation, from one department or branch of the City government to another.
24 Appendix V.S.A. § 3-157