during the life of the agreement("In other words, if an existing enterprise agreement is silent on a particular issue and a union seeks to initiate a bargaining period regarding that issue during the life of that agreement, the union may resort to protected industrial action."com.auART Vancouver)
during your employment(During your employment the School will be paying the cost of your participating to a Voluntary Health Insurance Scheme. (труд.договор)))
contract validity period("Contract Validity Period is a time interval over which the terms of a contract apply. Each contract includes a basic validity period. The actual validity period may be shorter (for example, due to an early cancellation) or longer (for example, because the customer extends the contract). The validity period consists of a start date and an end date." sap.comART Vancouver)