Chap. 607. and conditions as may be determined by said board prior to the issuance of such bonds. No bonds shall be called for redemption before maturity by said board unless funds sufficient to pay the principal thereof plus any redemption premium payable thereon and all interest accrued to the date fixed for redemption have been appropriated and are then available for said purposes or unless said board has provided for the issuance of refunding bonds therefor as hereinafter authorized. The board of water commissioners may provide for the issuance of refunding bonds of the District for the purpose of refunding at or prior to maturity any bonds issued under this act and then outstanding, including the payment of any redemption premium thereon, provided that any such refunding bonds shall be payable not later than forty years from the date of the bonds being refunded thereby and provided further that the amount of such refunding bonds shall not be included in or considered a part of the limit of six million dollars provided in this section. Section 4A. Nothing in this act shall infringe on any existing rights of any communities authorized to take water from the Ipswich river. Section 5. This act shall take effect upon its passage. Approved July 16, 1968. Chap. 607. An Act providing a capital outlay program for the COMMONWEALTH FOR CONSERVATION AND RECREATION PURPOSES. Whereas, The deferred operation of this act would tend to defeat its purpose, which is to provide immediately a capital outlay program for the commonwealth for conservation and recreation purposes, therefore it is hereby declared to be an emergency law, necessary for the immediate preservation of the public convenience. Be it enacted, etc., as follows: Section 1. The department of natural resources is hereby authorized and directed to expend a sum not exceeding fifteen million dollars for the acquisition of land and waters, as authorized by section three of chapter one hundred and thirty-two A of the General Laws, including the expenses in connection therewith and the cost of planning therefor and the development, redevelopment and improvement of outdoor recreation areas; provided that, notwithstanding any general law or special law to the contrary, said department may acquire by purchase from the United States any federal lands wherever situated in the commonwealth and may enter into contracts with agencies of the United States, including but not limited to the department of housing and urban renewal and the bureau of outdoor recreation, to obtain federal grants or reimbursements under related federal programs. Section 2. Funds provided in this act shall be in addition to prior appropriations authorized for the purposes defined in section one. No expenditure shall be made for consultant services, so called, or services coded in accordance with the expenditure code manual under the subsidiary title "03 Services — Non-employees" unless the rate of compensation for such services shall have been approved by the commissioner of administration. Said commissioner shall, immediately upon the approval of any such rate or rates, file copies of the schedule or schedules of approved rates with the comptroller and with the house and senate committees on ways and means. Before engaging such con- Acts, 1968. —