In order to be certified into the program, the applicant must be eligible as of the date it was submitted for review and the HUBZone director issues a decision. If you submit before a map update, as long as you meet the qualifications (i.e. map location), you should not have any issue with getting HUBZone Certified.
To know if your location is in a HUBZone, use the map lookup tool by clicking the button below