No pupil from any town belonging to a regional school district shall, at the expense of such town, attend any other school in lieu of that provided by said district except a technical education and career school operated by the Technical Education and Career System established pursuant to section 10-95 approved by the State Board of Education, unless his attendance at such other school is approved by the regional board of education.
Conn. Gen. Stat. § 10-55
(1949 Rev., S. 1380; 1951, S. 910d; P.A. 12-116 , S. 87 ; P.A. 17-237 , S. 48 .)