diff --git a/app/controllers/case_logs_controller.rb b/app/controllers/case_logs_controller.rb
index a14adf2e9..45973a8ba 100644
--- a/app/controllers/case_logs_controller.rb
+++ b/app/controllers/case_logs_controller.rb
@@ -26,7 +26,7 @@ class CaseLogsController < ApplicationController
     previous_page = params[:case_log][:previous_page]
     questions_for_page = form.questions_for_page(previous_page).keys
     answers_for_page = page_params(questions_for_page).select { |k, _v| questions_for_page.include?(k) }
-    @case_log.custom_validator_options = { previous_page: previous_page }
+    @case_log.custom_validator_options = { previous_page: previous_page, validation: form.questions_for_page(previous_page)[previous_page]["regex_validation"] }
     if @case_log.update(answers_for_page)
       redirect_path = form.next_page_redirect_path(previous_page)
       redirect_to(send(redirect_path, @case_log))
diff --git a/app/models/case_log.rb b/app/models/case_log.rb
index 4933c7483..cbe687701 100644
--- a/app/models/case_log.rb
+++ b/app/models/case_log.rb
@@ -1,22 +1,23 @@
 class CaseLogValidator < ActiveModel::Validator
 
-  def validate_tenant_age(record)
+  def validate_tenant_age(record, validation_regex)
+    regexp = Regexp.new validation_regex
     if !record.tenant_age?
       record.errors.add :base, "Tenant age can't be blank"
-    elsif !(record.tenant_age.to_s =~ /^[1-9][0-9]?$|^100$/)
+    elsif !(record.tenant_age.to_s =~ regexp)
       record.errors.add :base, "Tenant age must be between 0 and 100"
     end
   end
 
   def validate(record)
     question_to_validate = options[:previous_page]
-
+    validation_regex = options[:validation]
     if question_to_validate == "tenant_code"
       if !record.tenant_code?
         record.errors.add :base, "Tenant code can't be blank"
       end
     elsif question_to_validate == "tenant_age"
-        validate_tenant_age(record)
+        validate_tenant_age(record, validation_regex)
     end
   end
 end
diff --git a/config/forms/2021_2022.json b/config/forms/2021_2022.json
index a5b3072ce..ef311aa6b 100644
--- a/config/forms/2021_2022.json
+++ b/config/forms/2021_2022.json
@@ -32,7 +32,8 @@
                   "type": "numeric",
                   "min": 0,
                   "max": 150,
-                  "step": 1
+                  "step": 1,
+                  "regex_validation" : "^[1-9][0-9]?$|^100$"
                 }
               }
             },