This response assumes that the only change introduced by the new holiday policy is to increase the holiday entitlement of those with long service, and that it is not proposed to alter or decrease the holiday entitlement of employees generally. An employment or worker contract may, like any other contract, be amended at any time either: • in accordance with the terms of the contract itself (eg where a clause in the existing contract purports to give the employer the power to vary some, or all of the terms, unilaterally, without the employee's consent), or • with the agreement of all the parties to the contract For further information generally, see Practice Note: Changing terms and conditions of employment. Changing