Budget Bill: The legislation symbolizing the Governor’s proposal for spending authorization for the subsequent fiscal year. The Budget Bill is all set by the Department of Finance and submitted to each house of the Legislature in January (that is, accompanying the Governor's Budget). The Budget Bill’s authors are usually the budget committee chair-persons.
The California Constitution needs the Legislature to pass the Budget Bill and send it by June 15 every year to the Governor for signature. The Budget Bill becomes the Budget Act upon signature by the Governor, subsequent to any line-item vetoes.