If the applicant for any type of annuity other than a disability annuity, or a spouse annuity based upon the disabled applicant's compensation, chooses an annuity beginning date in a month which is more than three months after the date the application is filed, the Board will deny the application as explained in part 217 of this chapter. The applicant must file a new application no earlier than three months before the month he or she wants the annuity to begin.