Do I have to transmit any data before the legal requirement?

Yes, but only during your installation phase – this is so we can verify your device is installed, operational and able to transmit I-VMS data correctly. 

After the installation period there is no legal requirement to transmit I-VMS data to us until the I-VMS regulation comes into force. However, if a fisher wishes to, they can voluntarily send I-VMS data to the MMO via the UK VMS Hub prior to the I-VMS regulation coming into force.