diff --git a/app/models/case_log.rb b/app/models/case_log.rb
index ae6e06fb6..7ea9af741 100644
--- a/app/models/case_log.rb
+++ b/app/models/case_log.rb
@@ -68,6 +68,7 @@ class CaseLog < ApplicationRecord
   enum housingneeds_f: POLAR, _suffix: true
   enum housingneeds_g: POLAR, _suffix: true
   enum housingneeds_h: POLAR, _suffix: true
+  enum accessibility_requirements_prefer_not_to_say: POLAR, _suffix: true
   enum illness_type_1: POLAR, _suffix: true
   enum illness_type_2: POLAR, _suffix: true
   enum illness_type_3: POLAR, _suffix: true
@@ -183,6 +184,11 @@ private
       self.mrcmonth = mrcdate.month
       self.mrcyear = mrcdate.year
     end
+    if startdate.present?
+      self.day = startdate.day
+      self.month = startdate.month
+      self.year = startdate.year
+    end
     self.incref = 1 if net_income_known == "Prefer not to say"
     self.hhmemb = other_hhmemb + 1 if other_hhmemb.present?
     self.renttype = RENT_TYPE_MAPPING[rent_type]
diff --git a/app/models/constants/case_log.rb b/app/models/constants/case_log.rb
index c503ec1b3..3a537035d 100644
--- a/app/models/constants/case_log.rb
+++ b/app/models/constants/case_log.rb
@@ -65,7 +65,7 @@ module Constants::CaseLog
   ILLNESS = {
     "Yes" => 1,
     "No" => 2,
-    "Do not know" => 3,
+    "Prefer not to say" => 3,
   }.freeze
 
   LEFTREG = {
diff --git a/app/models/validations/household_validations.rb b/app/models/validations/household_validations.rb
index ba29953e7..dc4e9acf2 100644
--- a/app/models/validations/household_validations.rb
+++ b/app/models/validations/household_validations.rb
@@ -74,6 +74,16 @@ module Validations::HouseholdValidations
     validate_person_age_matches_economic_status(record, 1)
   end
 
+  def validate_accessibility_requirements(record)
+    all_options = [record.housingneeds_a, record.housingneeds_b, record.housingneeds_c, record.housingneeds_f, record.housingneeds_g, record.housingneeds_h, record.accessibility_requirements_prefer_not_to_say]
+    if all_options.count("Yes") > 1
+      mobility_accessibility_options = [record.housingneeds_a, record.housingneeds_b, record.housingneeds_c]
+      unless all_options.count("Yes") == 2 && record.housingneeds_f == "Yes" && mobility_accessibility_options.any? { |x| x == "Yes" }
+        record.errors.add :housingneeds_a, "Only one box must be ticked or 'other disabilities' plus one of mobility disabilities"
+      end
+    end
+  end
+
   def validate_shared_housing_rooms(record)
     unless record.unittype_gn.nil?
       if record.unittype_gn == "Bed-sit" && record.beds != 1 && record.beds.present?
diff --git a/config/locales/devise.en.yml b/config/locales/devise.en.yml
index ec502b562..d84886a71 100644
--- a/config/locales/devise.en.yml
+++ b/config/locales/devise.en.yml
@@ -45,6 +45,10 @@ en:
       update_needs_confirmation: "You updated your account successfully, but we need to verify your new email address. Please check your email and follow the confirmation link to confirm your new email address."
       updated: "Your account has been updated successfully."
       updated_but_not_signed_in: "Your account has been updated successfully, but since your password was changed, you need to sign in again."
+    sessions:
+      signed_in: ""
+      signed_out: ""
+      already_signed_out: ""
     unlocks:
       send_instructions: "You will receive an email with instructions for how to unlock your account in a few minutes."
       send_paranoid_instructions: "If your account exists, you will receive an email with instructions for how to unlock it in a few minutes."
diff --git a/db/migrate/20211213122642_add_day_month_year_fields_for_start_date.rb b/db/migrate/20211213122642_add_day_month_year_fields_for_start_date.rb
new file mode 100644
index 000000000..c0c7c51d9
--- /dev/null
+++ b/db/migrate/20211213122642_add_day_month_year_fields_for_start_date.rb
@@ -0,0 +1,9 @@
+class AddDayMonthYearFieldsForStartDate < ActiveRecord::Migration[6.1]
+  def change
+    change_table :case_logs, bulk: true do |t|
+      t.column :day, :integer
+      t.column :month, :integer
+      t.column :year, :integer
+    end
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 38fe84eb0..7f5ba379d 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2021_12_03_144855) do
+ActiveRecord::Schema.define(version: 2021_12_13_122642) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -171,6 +171,9 @@ ActiveRecord::Schema.define(version: 2021_12_03_144855) do
     t.integer "lettype"
     t.integer "postcode_known"
     t.integer "la_known"
+    t.integer "day"
+    t.integer "month"
+    t.integer "year"
     t.index ["discarded_at"], name: "index_case_logs_on_discarded_at"
     t.index ["managing_organisation_id"], name: "index_case_logs_on_managing_organisation_id"
     t.index ["owning_organisation_id"], name: "index_case_logs_on_owning_organisation_id"
diff --git a/spec/factories/case_log.rb b/spec/factories/case_log.rb
index cca98c002..b459e38fc 100644
--- a/spec/factories/case_log.rb
+++ b/spec/factories/case_log.rb
@@ -134,6 +134,9 @@ FactoryBot.define do
       incref { 0 }
       sale_completion_date { nil }
       startdate { Time.zone.now }
+      day { Time.zone.now.day }
+      month { Time.zone.now.month }
+      year { Time.zone.now.year }
       armedforces { 1 }
       builtype { 1 }
       unitletas { 2 }
diff --git a/spec/features/form/saving_data_spec.rb b/spec/features/form/saving_data_spec.rb
index ab7b03643..f419a3438 100644
--- a/spec/features/form/saving_data_spec.rb
+++ b/spec/features/form/saving_data_spec.rb
@@ -17,7 +17,6 @@ RSpec.describe "Form Saving Data" do
     FactoryBot.create(
       :case_log, :in_progress,
       housingneeds_a: "Yes",
-      housingneeds_c: "Yes",
       owning_organisation: user.organisation,
       managing_organisation: user.organisation
     )
@@ -93,9 +92,5 @@ RSpec.describe "Form Saving Data" do
       "case-log-accessibility-requirements-housingneeds-b-field",
       visible: false,
     )
-    expect(page).to have_checked_field(
-      "case-log-accessibility-requirements-housingneeds-c-field",
-      visible: false,
-    )
   end
 end
diff --git a/spec/features/user_spec.rb b/spec/features/user_spec.rb
index 2fb117941..71375f4d2 100644
--- a/spec/features/user_spec.rb
+++ b/spec/features/user_spec.rb
@@ -18,7 +18,6 @@ RSpec.describe "User Features" do
       fill_in("user[password]", with: "pAssword1")
       click_button("Sign in")
       expect(page).to have_current_path("/logs")
-      expect(page).to have_css(".govuk-notification-banner.govuk-notification-banner--success")
     end
   end
 
diff --git a/spec/fixtures/complete_case_log.json b/spec/fixtures/complete_case_log.json
index b41538a8f..c7cc65314 100644
--- a/spec/fixtures/complete_case_log.json
+++ b/spec/fixtures/complete_case_log.json
@@ -51,6 +51,9 @@
     "condition_effects": "dummy",
     "tenancy_code": "BZ757",
     "startdate": "12/12/2020",
+    "day": 12,
+    "month": 12,
+    "year": 2020,
     "startertenancy": "No",
     "tenancylength": "5",
     "tenancy": "Secure (including flexible)",
diff --git a/spec/models/case_log_spec.rb b/spec/models/case_log_spec.rb
index ed39fcb1f..8086aa3e3 100644
--- a/spec/models/case_log_spec.rb
+++ b/spec/models/case_log_spec.rb
@@ -826,6 +826,61 @@ RSpec.describe Form, type: :model do
         }.not_to raise_error
       end
     end
+
+    context "For accessibility requirements" do
+      it "validates that only one option can be selected" do
+        expect {
+          CaseLog.create!(housingneeds_a: "Yes",
+                          housingneeds_b: "Yes",
+                          rent_type: "London Affordable rent",
+                          owning_organisation: owning_organisation,
+                          managing_organisation: managing_organisation)
+        }.to raise_error(ActiveRecord::RecordInvalid)
+      end
+
+      it "validates that only one option a, b, or c can be selected in conjunction with f" do
+        expect {
+          CaseLog.create!(housingneeds_a: "Yes",
+                          housingneeds_f: "Yes",
+                          rent_type: "London Affordable rent",
+                          owning_organisation: owning_organisation,
+                          managing_organisation: managing_organisation)
+        }.to_not raise_error
+
+        expect {
+          CaseLog.create!(housingneeds_b: "Yes",
+                          housingneeds_f: "Yes",
+                          rent_type: "London Affordable rent",
+                          owning_organisation: owning_organisation,
+                          managing_organisation: managing_organisation)
+        }.to_not raise_error
+
+        expect {
+          CaseLog.create!(housingneeds_c: "Yes",
+                          housingneeds_f: "Yes",
+                          rent_type: "London Affordable rent",
+                          owning_organisation: owning_organisation,
+                          managing_organisation: managing_organisation)
+        }.to_not raise_error
+
+        expect {
+          CaseLog.create!(housingneeds_g: "Yes",
+                          housingneeds_f: "Yes",
+                          rent_type: "London Affordable rent",
+                          owning_organisation: owning_organisation,
+                          managing_organisation: managing_organisation)
+        }.to raise_error(ActiveRecord::RecordInvalid)
+
+        expect {
+          CaseLog.create!(housingneeds_a: "Yes",
+                          housingneeds_b: "Yes",
+                          housingneeds_f: "Yes",
+                          rent_type: "London Affordable rent",
+                          owning_organisation: owning_organisation,
+                          managing_organisation: managing_organisation)
+        }.to raise_error(ActiveRecord::RecordInvalid)
+      end
+    end
   end
 
   describe "status" do
@@ -882,6 +937,7 @@ RSpec.describe Form, type: :model do
         property_postcode: "M1 1AE",
         previous_postcode: "M2 2AE",
         # rubocop:disable Style/DateTime
+        startdate: DateTime.new(2021, 10, 10),
         mrcdate: DateTime.new(2021, 5, 4),
         # rubocop:enable Style/DateTime
         net_income_known: "Prefer not to say",
@@ -948,5 +1004,17 @@ RSpec.describe Form, type: :model do
       expect(case_log.lettype).to eq("Intermediate Rent General needs PRP")
       expect(record_from_db["lettype"]).to eq(9)
     end
+
+    it "correctly derives and saves day, month, year from start date" do
+      case_log.reload
+
+      record_from_db = ActiveRecord::Base.connection.execute("select day, month, year, startdate from case_logs where id=#{case_log.id}").to_a[0]
+      expect(record_from_db["startdate"].day).to eq(10)
+      expect(record_from_db["startdate"].month).to eq(10)
+      expect(record_from_db["startdate"].year).to eq(2021)
+      expect(record_from_db["day"]).to eq(10)
+      expect(record_from_db["month"]).to eq(10)
+      expect(record_from_db["year"]).to eq(2021)
+    end
   end
 end
diff --git a/spec/requests/form_controller_spec.rb b/spec/requests/form_controller_spec.rb
index b8f889cb9..ee9115184 100644
--- a/spec/requests/form_controller_spec.rb
+++ b/spec/requests/form_controller_spec.rb
@@ -135,9 +135,7 @@ RSpec.describe FormController, type: :request do
             case_log: {
               page: "accessibility_requirements",
               accessibility_requirements:
-                                     %w[ housingneeds_a
-                                         housingneeds_b
-                                         housingneeds_c],
+                                     %w[housingneeds_b],
             },
           }
         end
@@ -156,16 +154,13 @@ RSpec.describe FormController, type: :request do
           post "/logs/#{case_log.id}/form", params: case_log_form_params
           case_log.reload
 
-          expect(case_log.housingneeds_a).to eq("Yes")
           expect(case_log.housingneeds_b).to eq("Yes")
-          expect(case_log.housingneeds_c).to eq("Yes")
         end
 
         it "sets previously submitted items to false when resubmitted with new values" do
           post "/logs/#{case_log.id}/form", params: new_case_log_form_params
           case_log.reload
 
-          expect(case_log.housingneeds_a).to eq("No")
           expect(case_log.housingneeds_b).to eq("No")
           expect(case_log.housingneeds_c).to eq("Yes")
         end
@@ -179,8 +174,7 @@ RSpec.describe FormController, type: :request do
                 page: "accessibility_requirements",
                 accessibility_requirements:
                                        %w[ housingneeds_a
-                                           housingneeds_b
-                                           housingneeds_c],
+                                           housingneeds_f],
                 tenant_code: tenant_code,
               },
             }
@@ -213,8 +207,7 @@ RSpec.describe FormController, type: :request do
             case_log.reload
 
             expect(case_log.housingneeds_a).to eq("Yes")
-            expect(case_log.housingneeds_b).to eq("Yes")
-            expect(case_log.housingneeds_c).to eq("Yes")
+            expect(case_log.housingneeds_f).to eq("Yes")
             expect(case_log.tenant_code).to eq(tenant_code)
           end
         end