Regulation 10

a part-time employee is employed under a contract of service or collective agreement entered into before any provision of these Regulations relating to an entitlement of a part-time employee (called a specified provision) came into operation; and

any terms of service provided for in the contract of service or collective agreement are more favourable to the part-time employee than the specified provision,those terms of service insofar as they are more favourable to the part-time employee than any specified provision continue to apply until varied by the parties to the contract of service or collective agreement, as the case may be.