Vessels should signal their first ETA message on leaving the previous Port of call and confirm 3 days, 2 days and one day before arrival. In addition to their ETA to agents vessels must pass an ETA to the terminal via the company's radio station giving at least 3 days notice of ETA advising their estimates of:
a) quantity of cargo (in longton) to be loaded at the terminal and loading rate (in longton)
b) quantity of ballast (in longton) to be discharged ashore at the terminal.
c) ballast discharge rate (in longton per hour).
If subsequent to advice of their four day ETA there is any material change, a further ETA message must be passed via company's radio station. The company operates a radio station for the terminal and this station only handles traffic directly connected with the company's activities.