(a) For the purposes of this section:

(1) “Board of education” means a local or regional board of education, a cooperative arrangement committee established pursuant to § 10-158a, or the board of trustees of an incorporated or endowed high school or academy approved pursuant to § 10-34, which is located in this state;

(2) “Teacher” includes each certified professional employee below the rank of superintendent employed by a board of education for at least ninety calendar days in a position requiring a certificate issued by the State Board of Education;

(3) “Continuous employment” means that time during which the teacher is employed without any break in employment as a teacher for the same board of education;

(4) “Full-time employment” means a teacher’s employment in a position at a salary rate of fifty per cent or more of the salary rate of such teacher in such position if such position were full-time;

(5) “Part-time employment” means a teacher’s employment in a position at a salary rate of less than fifty per cent of the salary rate of such teacher in such position, if such position were full-time;

(6) “Tenure” means:

(A) The completion of forty school months of full-time continuous employment for the same board of education, provided the superintendent offers the teacher a contract to return for the following school year on the basis of effective practice as informed by performance evaluations conducted pursuant to § 10-151b. For purposes of calculating continuous employment towards tenure, the following shall apply: (i) For a teacher who has not attained tenure, two school months of part-time continuous employment by such teacher shall equal one school month of full-time continuous employment except, for a teacher employed in a part-time position at a salary rate of less than twenty-five per cent of the salary rate of a teacher in such position, if such position were full-time, three school months of part-time continuous employment shall equal one school month of full-time continuous employment; (ii) a teacher who has not attained tenure shall not count layoff time towards tenure, except that if such teacher is reemployed by the same board of education within five calendar years of the layoff, such teacher may count the previous continuous employment immediately prior to the layoff towards tenure; (iii) a teacher who has not attained tenure shall not count authorized leave time towards tenure if such time exceeds ninety student school days in any one school year, provided only the student school days worked that year by such teacher shall count towards tenure and shall be computed on the basis of eighteen student school days or the greater fraction thereof equaling one school month; (iv) for a teacher who has not attained tenure and who is employed by a local or regional board of education that enters into a cooperative arrangement pursuant to § 10-158a, such teacher may count the previous continuous employment with such board immediately prior to such cooperative arrangement towards tenure; and (v) for a teacher who has not attained tenure and who is employed by a local board of education or as part of a cooperative arrangement, pursuant to § 10-158a, and such board or cooperative arrangement joins a regional school district, such teacher may count the previous continuous employment with such local board or cooperative arrangement immediately prior to employment by the regional board of education towards tenure.

(B) For a teacher who has attained tenure prior to layoff, tenure shall resume if such teacher is reemployed by the same board of education within five calendar years of the layoff.

(C) Except as provided in subparagraphs (B) and (D) of this subdivision, any teacher who has attained tenure with any one board of education and whose employment with such board ends for any reason and who is reemployed by such board or is subsequently employed by any other board, shall attain tenure after completion of twenty school months of continuous employment, provided the superintendent offers the teacher a contract to return for the following school year on the basis of effective practice as informed by performance evaluations conducted pursuant to § 10-151b. The provisions of this subparagraph shall not apply if, (i) prior to completion of the twentieth school month following commencement of employment by such board such teacher has been notified in writing that his or her contract will not be renewed for the following school year, or (ii) for a period of five or more calendar years immediately prior to such subsequent employment, such teacher has not been employed by any board of education.

(D) For a teacher who has attained tenure and is employed by a local or regional board of education that enters into a cooperative arrangement pursuant to § 10-158a, such teacher shall not experience a break in continuous employment for purposes of tenure as a result of such cooperative arrangement.

(E) For a teacher who has attained tenure and is employed by a local board of education or as part of a cooperative arrangement, pursuant to § 10-158a, and such board or cooperative arrangement joins a regional school district, such teacher shall not experience a break in continuous employment for purposes of tenure as a result of joining such regional school district.

(7) “School month” means any calendar month other than July or August in which a teacher is employed as a teacher at least one-half of the student school days.

(b) Any board of education may authorize the superintendent to employ teachers. Any superintendent not authorized to employ teachers shall submit to the board of education nominations for teachers for each of the schools in the town or towns in such superintendent’s jurisdiction and, from the persons so nominated, teachers may be employed. Such board shall accept or reject such nominations not later than thirty-five calendar days from their submission. Any such board of education may request the superintendent to submit multiple nominations of qualified candidates, if more than one candidate is available for nomination, for any supervisory or administrative position, in which case the superintendent shall submit such a list and may place the candidates on such list in the order in which such superintendent recommends such candidates. If such board rejects such nominations, the superintendent shall submit to such board other nominations and such board may employ teachers from the persons so nominated and shall accept or reject such nominations not later than one month from their submission. Whenever a superintendent offers a teacher who has not attained tenure a contract to return for another year of employment, such offer shall be based on records of evaluations pursuant to subsection (a) of § 10-151b. The contract of employment of a teacher shall be in writing.

(c) The contract of employment of a teacher who has not attained tenure may be terminated at any time for any of the reasons enumerated in subdivisions (1) to (6), inclusive, of subsection (d) of this section; otherwise the contract of such teacher shall be continued into the next school year unless such teacher receives written notice by May first in one school year that such contract will not be renewed for the following year. Upon the teacher’s written request, not later than three calendar days after such teacher receives such notice of nonrenewal or termination, a notice of nonrenewal or termination shall be supplemented not later than four calendar days after receipt of the request by a statement of the reason or reasons for such nonrenewal or termination. Such teacher, upon written request filed with the board of education not later than ten calendar days after the receipt of notice of termination, or nonrenewal shall be entitled to a hearing, except as provided in this subsection, (1) before the board, or (2) if indicated in such request and if designated by the board, before an impartial hearing officer chosen by the teacher and the superintendent in accordance with the provisions of subsection (d) of this section. Such hearing shall commence not later than fifteen calendar days after receipt of such request unless the parties mutually agree to an extension not to exceed fifteen calendar days. The impartial hearing officer or a subcommittee of the board of education, if the board of education designates a subcommittee of three or more board members to conduct hearings, shall submit written findings and recommendations to the board for final disposition. The teacher shall have the right to appear with counsel of the teacher’s choice at the hearing. A teacher who has not attained tenure shall not be entitled to a hearing concerning nonrenewal if the reason for such nonrenewal is either elimination of position or loss of position to another teacher. The board of education shall rescind a nonrenewal decision only if the board finds such decision to be arbitrary and capricious. Any such teacher whose contract is terminated for the reasons enumerated in subdivisions (3) and (4) of subsection (d) of this section shall have the right to appeal in accordance with the provisions of subsection (e) of this section.

(d) The contract of employment of a teacher who has attained tenure shall be continued from school year to school year, except that it may be terminated at any time for one or more of the following reasons: (1) Inefficiency, incompetence or ineffectiveness, provided, if a teacher is notified on or after July 1, 2014, that termination is under consideration due to incompetence or ineffectiveness, the determination of incompetence or ineffectiveness is based on evaluation of the teacher using teacher evaluation guidelines established pursuant to § 10-151b; (2) insubordination against reasonable rules of the board of education; (3) moral misconduct; (4) disability, as shown by competent medical evidence; (5) elimination of the position to which the teacher was appointed or loss of a position to another teacher, if no other position exists to which such teacher may be appointed if qualified, provided such teacher, if qualified, shall be appointed to a position held by a teacher who has not attained tenure, and provided further that determination of the individual contract or contracts of employment to be terminated shall be made in accordance with either (A) a provision for a layoff procedure agreed upon by the board of education and the exclusive employees’ representative organization, or (B) in the absence of such agreement, a written policy of the board of education; or (6) other due and sufficient cause. Nothing in this section or in any other section of the general statutes or of any special act shall preclude a board of education from making an agreement with an exclusive bargaining representative which contains a recall provision. Prior to terminating a contract, the superintendent shall give the teacher concerned a written notice that termination of such teacher’s contract is under consideration and give such teacher a statement of the reasons for such consideration of termination. Not later than ten calendar days after receipt of written notice by the superintendent that contract termination is under consideration, such teacher may file with the local or regional board of education a written request for a hearing. A board of education may designate a subcommittee of three or more board members to conduct hearings and submit written findings and recommendations to the board for final disposition in the case of teachers whose contracts are terminated. Such hearing shall commence not later than fifteen calendar days after receipt of such request, unless the parties mutually agree to an extension, not to exceed fifteen calendar days (A) before the board of education or a subcommittee of the board, or (B) if indicated in such request or if designated by the board before an impartial hearing officer chosen by the teacher and the superintendent. If the parties are unable to agree upon the choice of a hearing officer not later than five calendar days after the decision to use a hearing officer, the hearing officer shall be selected with the assistance of the American Arbitration Association using its expedited selection process and in accordance with its rules for selection of a neutral arbitrator in grievance arbitration. If the hearing officer is not selected with the assistance of such association after five days, the hearing shall be held before the board of education or a subcommittee of the board. When the reason for termination is incompetence or ineffectiveness, the hearing shall (i) address the question of whether the performance evaluation ratings of the teacher were determined in good faith in accordance with the program adopted by the local or regional board of education pursuant to § 10-151b and were reasonable in light of the evidence presented, and (ii) be limited to twelve total hours of evidence and testimony, with each side allowed not more than six hours to present evidence and testimony except the board, subcommittee of the board or impartial hearing officer may extend the time period for evidence and testimony at the hearing when good cause is shown. Not later than forty-five calendar days after receipt of the request for a hearing, the subcommittee of the board or hearing officer, unless the parties mutually agree to an extension not to exceed fifteen calendar days, shall submit written findings and a recommendation to the board of education as to the disposition of the charges against the teacher and shall send a copy of such findings and recommendation to the teacher. The board of education shall give the teacher concerned its written decision not later than fifteen calendar days after receipt of the written recommendation of the subcommittee or hearing officer. Each party shall share equally the fee of the hearing officer and all other costs incidental to the hearing. If the hearing is before the board of education, the board shall render its decision not later than fifteen calendar days after the close of such hearing and shall send a copy of its decision to the teacher. The hearing shall be public if the teacher so requests or the board, subcommittee or hearing officer so designates. The teacher concerned shall have the right to appear with counsel at the hearing, whether public or private. A copy of a transcript of the proceedings of the hearing shall be furnished by the board of education, upon written request by the teacher within fifteen days after the board’s decision, provided the teacher shall assume the cost of any such copy. Nothing herein contained shall deprive a board of education or superintendent of the power to suspend a teacher from duty immediately when serious misconduct is charged without prejudice to the rights of the teacher as otherwise provided in this section.

(e) Any teacher aggrieved by the decision of a board of education after a hearing as provided in subsection (d) of this section may appeal therefrom, not later than thirty calendar days after such decision, to the Superior Court. Such appeal shall be made returnable to said court in the same manner as is prescribed for civil actions brought to said court. Any such appeal shall be a privileged case to be heard by the court as soon after the return day as is practicable. The board of education shall file with the court a copy of the complete transcript of the proceedings of the hearing and the minutes of board of education meetings relating to such termination, including the vote of the board on the termination, together with such other documents, or certified copies thereof, as shall constitute the record of the case. The court, upon such appeal, shall review the proceedings of such hearing. The court, upon such appeal and hearing thereon, may affirm or reverse the decision appealed from in accordance with subsection (j) of § 4-183. Costs shall not be allowed against the board of education unless it appears to the court that it acted with gross negligence or in bad faith or with malice in making the decision appealed from.