Conn. Gen. Stat. § 10-229: Change of textbooks.

(a) No board of education shall change any textbooks used in the public schools except by a two-thirds vote of all the members of the board, notice of such intended change having been previously given at a meeting of such board held at least one week previous to the vote upon such change.

(b) If a board of education does change its textbooks pursuant to subsection (a) of this section, such board of education may donate the used textbooks to another board of education.