According to art. 172 CAU The regulations applicable to customs formalities are those in force at the time of the acceptance of the customs declaration. In other words, in the case of pre-declarations, it will be the time of presentation of the goods, not the time when the pre-declaration is sent. Therefore, preH7 devices launched before July 1st, which are activated after that date, will be subject to the new regulations approving the fixed tariff of 3 euros. Since the pre-declaration will be sent before the declaration changes come into effect, an automatic computer process will be used to make the necessary modifications to the declared codes and calculate the tariff. The operation is as follows:

• PreH7 June-> DOES NOT have A00
• It is activated in July-> if you query immediately after activation, the response will return that it does NOT have A00.
• In the early hours of the following day, a computer process will be run that will calculate A00. In addition, the additional regime codes will be changed.
• If you query after that nightly process, the response will be returned with the new codes and the calculated A00. 

This process will be carried out in the early mornings of July compared to the previous day, as long as there are preH7s of high in June that are activated in July. This ensures that they are up-to-date at the time the payment letter is calculated.