Section 2BBBB. There shall be established and set up on the books of the commonwealth a separate fund to be known as the Commonwealth Substance Abuse Prevention and Treatment Fund. The fund shall be credited with all sales tax revenues collected from the sale of alcoholic beverages under chapter 64H which are not part of the dedicated sales tax revenue amount described in section 35T or section 35BB of chapter 10. Amounts credited to the fund shall be expended, subject to appropriation, to support substance abuse treatment and prevention services.