3.1.4 Substantiation of the request 

The request must state the grounds on which it is based, and must set out the facts relied on. It must therefore give the precise cause of non-compliance with the time limit concerned (i.e. the fact or obstacle preventing the required action within the time limit), specify at what time and under which circumstances the cause arose and was removed, and present the main facts relevant to determining whether all due care required by the circumstances had been taken to comply with the time limit (see J 15/10). General statements that do not include the specific facts or events that caused the time limit to be missed do not satisfy the requirement of a duly substantiated request under Rule 136(2).

Once the time limit for filing the request for re-establishment has expired, the requester may clarify or supplement the alleged facts and, where appropriate, submit further evidence, but they cannot alter the factual basis for the original request (see J 5/94). Any new facts introduced at this stage are inadmissible and therefore disregarded by the deciding body.