It appears that @mrabet41 was issued a robust version of a Residence Questionnaire. It is not clear which form of a Residence Questionnaire was issued, but it appears likely it is a version of the full blown RQ form CIT 0171 (could be a revised/new version of this). This is based on a post December 7:
The full blown version of RQ instructs the citizenship applicant to provide "supporting documents that apply to your situation" in regards to just about every aspect of living in Canada, including those described relevant to documenting:
-- absences from Canada
-- home and family ties (includes, for example, documents related to the applicant's place of residence, ranging from lease agreements to billing for utility services)
-- education ties (including education ties of family members)
-- employment ties
-- property and businesses inside Canada
-- property and businesses outside Canada
-- OTHER
"OTHER" includes "health records detailing the date at which medical services were received" and "immunization records for children," as well as information about "social ties in Canada" supported by documents from organizations describing the nature and frequency of the applicant's involvement.
For several years now the forum has not been seeing many reports of even what many of us have called "RQ-lite," last shared version of which is CIT 0520, let alone the full blown version of RQ.
Consistent with the way IRCC makes requests generally, the RQ requests are very broad and refer to way more documents than any particular individual will have. Again, it qualifies the request with the instruction to provide "supporting documents that apply to your situation" . . . which means that the applicant is not required to submit every document described, only those relevant to the applicant.
For example, the full blown version of RQ requests school "records to document attendance" for the applicant's children as well as "immunization records for children." If the applicant has no children, the applicant does not submit such records. Even if the applicant has dependent children, if they are not in school yet, the RQ does not require their school records. I realize this is to state the obvious, but the point being that likewise in regards to the other supporting documents requests, the applicant is asked to provide what documents they have that will show where they lived, worked, studied, played, and engaged in other activities, including utilization of health care services in Canada . . . and generally all this is about proving the applicant's actual residence and presence in Canada.
Since only a very tiny percentage of citizenship applicants participate in this forum, there is not much we can infer based on the fact that we have not been seeing more RQ-related requests the last several years.
In the past there have been some occasions when CIC/IRCC has implemented quality control assessment projects including some that were randomly issuing RQ. However, most RQ-related non-routine processing cases are due to something in the applicant's case triggering reasons to question the applicant's residency. The most common reasons are significant discrepancies in the applicant's travel history or significant credibility concerns. That said, even though we do not know what IRCC currently employs as "triage criteria," or "reasons to question residency," there is almost certainly a current version of a File Requirements Checklist (FRC) which includes criteria for identifying applicants who will be subject to RQ-related non-routine processing.
Difficult, perhaps impossible to say why @mrabet41 in particular has gotten RQ'd. But, again, the most common reasons are:
(1) travel history issues that raise questions about meeting the physical presence requirement, either because the number of days in question would result in falling short (especially relevant for those who applied with little margin over the minimum) or the extent of discrepancies raises concerns about the credibility of the applicant's travel history, or
(2) other information in the application or the applicant's immigration history which raise significant credibility concerns
These do not appear to be anywhere near the scope of what would trigger a full blown version of RQ. Since it appears, however, that you have been issued a full blown RQ, unless you applied with a very small or no margin over the minimum (in which case any discrepancy in the travel history could trigger RQ-related non-routine processing, including RQ itself) it is likely there are credibility related concerns about the information you have provided.
Probably not worth trying to figure out the WHY, why you got RQ'd. Best approach now is to do your best to provide the information and supporting documents requested, to do so timely and as instructed (including format of submission).
Which is what others suggested two weeks ago when you first queried about the request for extensive information and documentation:
