The NOTAM is intended, as I said in my opening statement, for thousands of pilots, or whoever's in the air. They obey the NOTAMs in order to keep the airspace safe and secure. In a sense, when the NOTAM is published, it is active immediately and all pilots are required to obey it.
From a Nav Canada perspective, there's time required between when the NOTAM is published and when it is operationalized. You have to understand that this is an unprecedented action that the government took. I've personally been with company for 33 years and I have not seen anything similar to this, so these are procedures that did not exist. The aviation sector is a highly regulated sector, and it requires that we develop procedure according to a certain process and according to a regulated safety management system where we have to identify risks and determine if any mitigation is required.
In addition, at any given time, we've got hundreds of controllers sitting down in position who need to be taken off their positions and briefed on new procedure. Between the issuance of the NOTAM and its operationalization, there is time required.
To your question, as soon as the NOTAM is published, it is effective immediately, but it does take time for Nav Canada to brief controllers and operationalize the procedure, to go directly [Technical difficulty—Editor].