I recommend adding, after the question "Do you have a specific plan to move away from this county or city at a fixed date in the future?" the following question: "If so, when?"
The purpose in adding this question would be to allow the voter to explain whether the departure is based on a future contingency (which would allow the application to be accepted). See 1 VAC 20-40-20(B)(2). The voter's additional information would allow the registrar to make a better-informed judgment about the applicant's "specific plan" to move away from the county or city.
If this section of the Administrative Code is amended, then the letter would also need to be amended.