On the official record
Official / RED VERIFIEDIRCC security-screening brief says applicants are informed of admissibility concerns through a procedural fairness letter and given a chance to provide more information. On medical excessive-demand files, IRCC tells you to put any mitigation plan in the response to that letter and to send it to the contact printed on the letter.
The deadline is the one on that letter. It is real. A PFL is not an additional-documents request on a file that is otherwise moving.
Source: IRCC: Immigration security screening (SECU, 28 Aug 2024) · official page Dec 24, 2024 · checked Aug 21, 2026
Source: IRCC: Mitigation plans for excessive demand · official page Jul 23, 2026 · checked Aug 21, 2026
Source: IRCC Help Centre: You asked me for a new document. How do I submit it? · official page Apr 17, 2026 · checked Aug 21, 2026