Rule 155 — Cancelling GBO

1. (a)To cancel an item of a GBO , the RTC will use the following: Item _______ of GBO __________ is cancelled _________ ( RTC ).
2. (b)To cancel a GBO , the RTC will use the following: GBO _________ is cancelled ________________________ ( RTC ).
3. (c)The cancellation must be repeated to, and acknowledged by, the RTC .

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