Conn. Gen. Stat. § 31-57u: Additional leave. Donation of unused leave. Breaks in service.

(a) Nothing in sections 31-57s to 31-57w, inclusive, shall be construed to (1) prevent employers from providing more paid sick leave than is required under said sections, (2) diminish any rights provided to any employee under a collective bargaining agreement, or (3) preempt or override the terms of (A) any collective bargaining agreement effective prior to January 1, 2012, or (B) any collective bargaining agreement entered into on or after July 1, 2012, pursuant to chapter 319pp.

(b) Nothing in sections 31-57s to 31-57w, inclusive, shall be construed to prohibit an employer (1) from establishing a policy whereby an employee may donate unused accrued paid sick leave to another employee, and (2) who provides more paid sick leave than is required under sections 31-57s to 31-57w, inclusive, for the purposes described in subdivision (1) of subsection (a) of section 31-57t from limiting the amount of such leave an employee may use for other purposes.

(c) Any termination of an employee's employment by an employer, whether voluntary or involuntary, shall be construed as a break in service. Should any employee subsequently be rehired by the employer following a break in service, the employee (1) shall begin to accrue sick leave in accordance with section 31-57s, and (2) shall not be entitled to any unused hours of paid sick leave that had been accrued prior to the employee's break in service unless agreed to by the employer.