When does the Contractor submit his programme?

When does the Contractor submit his programme?

The contractor submits a first programme as chosen by the Employer either at tender stage or after a period of time after the contract is executed (the Contract date)
The Contractor is also required to submit a revised programme when instructed to do so by the Project Manager or at every period of time as stated in the Contract Data, when he chooses to do so or whit a quotation for a compensation event if the programme has changes as a result of the compensation event.