§ 9-4112.  Encouragement of More Generous Sick Time Policies; No Effect on More Generous Policies.
   (1)   Nothing in this Chapter shall be construed to discourage or prohibit an employer from the adoption or retention of a sick time policy more generous than the one required herein.
   (2)   Nothing in this Chapter shall be construed as diminishing the obligation of an employer to comply with any contract, collective bargaining agreement, employment benefit plan or other agreement providing more generous sick time to an employee than required herein.
   (3)   Nothing in this Chapter shall be construed as diminishing the rights of public employees regarding sick time or use of sick time as provided under Pennsylvania law.
   (4)   Nothing in this Chapter shall be construed to require an employer to change existing policies or provide additional paid leave if the employer's existing policy satisfies or exceeds the bill's accrual requirements and meets all other conditions set forth in this Chapter.