Massachusetts Constitution Amendments Art. LXIII, § 2

Within three weeks after the convening of the general court the governor shall recommend to the general court a budget which shall contain a statement of all proposed expenditures of the commonwealth for the fiscal year, including those already authorized by law, and of all taxes, revenues, loans and other means by which such expenditures shall be defrayed. In the first year of the term of office of a governor who has not served in the preceding year said governor shall recommend such budget within eight weeks after the convening of the general court. The budget shall be arranged in such form as the general court may by law prescribe, or, in default thereof, as the governor shall determine. For the purpose of preparing his budget, the governor shall have power to require any board, commission, officer or department to furnish him with any information which he may deem necessary.