Washington state constitution
Article IX
Section 3

The principal of the common school fund as the same existed on June 30, 1965, shall remain permanent and irreducible. The said fund shall consist of the principal amount thereof existing on June 30, 1965, and such additions thereto as may be derived after June 30, 1965, from the following named sources, to wit: Appropriations and donations by the state to this fund; donations and bequests by individuals to the state or public for common schools; the proceeds of lands and other property which revert to the state by escheat and forfeiture; the proceeds of all property granted to the state when the purpose of the grant is not specified, or is uncertain; funds accumulated in the treasury of the state for the disbursement of which provision has not been made by law; the proceeds of the sale of stone, minerals, or property other than timber and other crops from school and state lands, other than those granted for specific purposes; all moneys received from persons appropriating stone, minerals or property other than timber and other crops from school and state lands other than those granted for specific purposes, and all moneys other than rental recovered from persons trespassing on said lands; five per centum of the proceeds of the sale of public lands lying within the state, which shall be sold by the United States subsequent to the admission of the state into the Union as approved by section 13 of the act of congress enabling the admission of the state into the Union; the principal of all funds arising from the sale of lands and other property which have been, and hereafter may be granted to the state for the support of common schools. The legislature may make further provisions for enlarging said fund.
There is hereby established the common school construction fund to be used exclusively for the purpose of financing the construction of facilities for the common schools. The sources of said fund shall be: (1) Those proceeds derived from the sale or appropriation of timber and other crops from school and state lands subsequent to June 30, 1965, other than those granted for specific purposes; (2) the interest accruing on said permanent common school fund from and after July 1, 1967, together with all rentals and other revenues derived therefrom and from lands and other property devoted to the permanent common school fund from and after July 1, 1967; and (3) such other sources as the legislature may direct. That portion of the common school construction fund derived from interest on the permanent common school fund may be used to retire such bonds as may be authorized by law for the purpose of financing the construction of facilities for the common schools.
The interest accruing on the permanent common school fund together with all rentals and other revenues accruing thereto pursuant to subsection (2) of this section during the period after the effective date of this amendment and prior to July 1, 1967, shall be exclusively applied to the current use of the common schools.
To the extent that the moneys in the common school construction fund are in excess of the amount necessary to allow fulfillment of the purpose of said fund, the excess shall be available for deposit to the credit of the permanent common school fund or available for the current use of the common schools, as the legislature may direct.