if localityJSON.SubZips != "" && localityJSON.SubZipExs != "" && subZips[i] != "" && subZipExs[i] != "" {
            err := checkPostalCodeRegex("^"+subZips[i], strings.Split(subZipExs[i], ","))

            if err != nil {
                return result, postCodeReg, fmt.Errorf("error checking dependent locality post code regex for %s against sample: %s", localityJSON.ID, err)