Hi Nikki,
The reason for the statement is that if you ae unsuccessful with an application, it is considered that three months is the time it will take to address any development needs that are identified to you during the feedback stage.
It's justified as the criteria forms part of the National Recruitment process, to which most Fire & Rescue Services are now following, although there are some which have not implemented it yet.
Also, the costs involved and the time and staffing allocation for the recruitment process can be draining on resources, so people who fail to turn up for tests waste that time.
Obviously, if you have multiple applications, you can end up with a clash of dates for parts of the process.
You shoul declare if you have other applications ..... bear in mind that when you sign the application form, you are signing to say that all the information is true.