diff --git a/app/controllers/officing/results_controller.rb b/app/controllers/officing/results_controller.rb
index 76e4dff3e..125dc9448 100644
--- a/app/controllers/officing/results_controller.rb
+++ b/app/controllers/officing/results_controller.rb
@@ -26,6 +26,8 @@ class Officing::ResultsController < Officing::BaseController
       @partial_results = ::Poll::PartialResult.includes(:question).
                                             where(booth_assignment_id: index_params[:booth_assignment_id]).
                                             where(date: index_params[:date])
+      @whites = ::Poll::WhiteResult.where(booth_assignment_id: @booth_assignment.id, date: index_params[:date]).sum(:amount)
+      @nulls  = ::Poll::NullResult.where(booth_assignment_id: @booth_assignment.id, date: index_params[:date]).sum(:amount)
     end
   end
 
@@ -65,6 +67,33 @@ class Officing::ResultsController < Officing::BaseController
           end
         end
       end
+
+      build_white_results
+      build_null_results
+    end
+
+    def build_white_results
+      if results_params[:whites].present?
+        white_result = ::Poll::WhiteResult.find_or_initialize_by(booth_assignment_id: @officer_assignment.booth_assignment_id,
+                                                  date: results_params[:date])
+        white_result.officer_assignment_id = @officer_assignment.id
+        white_result.amount = results_params[:whites].to_i
+        white_result.author = current_user
+        white_result.origin = 'booth'
+        @results << white_result
+      end
+    end
+
+    def build_null_results
+      if results_params[:nulls].present?
+        white_result = ::Poll::WhiteResult.find_or_initialize_by(booth_assignment_id: @officer_assignment.booth_assignment_id,
+                                                  date: results_params[:date])
+        white_result.officer_assignment_id = @officer_assignment.id
+        white_result.amount = results_params[:nulls].to_i
+        white_result.author = current_user
+        white_result.origin = 'booth'
+        @results << white_result
+      end
     end
 
     def go_back_to_new(alert = nil)
@@ -102,7 +131,7 @@ class Officing::ResultsController < Officing::BaseController
     end
 
     def results_params
-      params.permit(:officer_assignment_id, :date, :questions)
+      params.permit(:officer_assignment_id, :date, :questions, :whites, :nulls)
     end
 
     def index_params
diff --git a/app/models/poll/null_result.rb b/app/models/poll/null_result.rb
new file mode 100644
index 000000000..222432c7f
--- /dev/null
+++ b/app/models/poll/null_result.rb
@@ -0,0 +1,23 @@
+class Poll::NullResult < ActiveRecord::Base
+
+  VALID_ORIGINS = %w{ web booth }
+
+  belongs_to :author, ->   { with_hidden }, class_name: 'User', foreign_key: 'author_id'
+  belongs_to :booth_assignment
+  belongs_to :officer_assignment
+
+  validates :author, presence: true
+  validates :origin, inclusion: {in: VALID_ORIGINS}
+
+  scope :by_author, -> (author_id) { where(author_id: author_id) }
+
+  before_save :update_logs
+
+  def update_logs
+    if self.amount_changed? && self.amount_was.present?
+      self.amount_log += ":#{self.amount_was.to_s}"
+      self.officer_assignment_id_log += ":#{self.officer_assignment_id_was.to_s}"
+      self.author_id_log += ":#{self.author_id_was.to_s}"
+    end
+  end
+end
\ No newline at end of file
diff --git a/app/models/poll/white_result.rb b/app/models/poll/white_result.rb
new file mode 100644
index 000000000..5b0aa4966
--- /dev/null
+++ b/app/models/poll/white_result.rb
@@ -0,0 +1,23 @@
+class Poll::WhiteResult < ActiveRecord::Base
+
+  VALID_ORIGINS = %w{ web booth }
+
+  belongs_to :author, ->   { with_hidden }, class_name: 'User', foreign_key: 'author_id'
+  belongs_to :booth_assignment
+  belongs_to :officer_assignment
+
+  validates :author, presence: true
+  validates :origin, inclusion: {in: VALID_ORIGINS}
+
+  scope :by_author, -> (author_id) { where(author_id: author_id) }
+
+  before_save :update_logs
+
+  def update_logs
+    if self.amount_changed? && self.amount_was.present?
+      self.amount_log += ":#{self.amount_was.to_s}"
+      self.officer_assignment_id_log += ":#{self.officer_assignment_id_was.to_s}"
+      self.author_id_log += ":#{self.author_id_was.to_s}"
+    end
+  end
+end
\ No newline at end of file
diff --git a/app/views/officing/results/index.html.erb b/app/views/officing/results/index.html.erb
index db839cbeb..70da6d8d3 100644
--- a/app/views/officing/results/index.html.erb
+++ b/app/views/officing/results/index.html.erb
@@ -8,8 +8,24 @@
     </h3>
   </div>
 
+
   <div class="row">
     <div class="small-12 medium-9 column">
+      <table>
+        <thead>
+          <tr>
+            <th><%= t("officing.results.index.table_whites") %></th>
+            <th><%= t("officing.results.index.table_nulls") %></th>
+          </tr>
+        </thead>
+        <tbody>
+          <tr>
+            <td id="white_results"><%= @whites %></td>
+            <td id="null_results"><%= @nulls %></td>
+          </tr>
+        </tbody>
+      </table>
+
       <% by_question = @partial_results.group_by(&:question_id) %>
       <% @poll.questions.each do |question| %>
         <h3><%= question.title %></h3>
@@ -31,7 +47,6 @@
             <% end %>
           </tbody>
         </table>
-
       <% end %>
     </div>
   </div>
diff --git a/app/views/officing/results/new.html.erb b/app/views/officing/results/new.html.erb
index 1d8dee7fd..74af8af10 100644
--- a/app/views/officing/results/new.html.erb
+++ b/app/views/officing/results/new.html.erb
@@ -39,13 +39,13 @@
 
     <div class="row">
       <div class="small-12 medium-6 large-3 column">
-        <h3><%= t("officing.results.new.ballots_blank") %></h3>
-        <%= text_field_tag :count, nil, placeholder: "0" %>
+        <h3><%= t("officing.results.new.ballots_white") %></h3>
+        <%= text_field_tag :whites, params[:whites].presence, placeholder: "0" %>
       </div>
 
       <div class="small-12 medium-6 large-3 column end">
         <h3><%= t("officing.results.new.ballots_null") %></h3>
-        <%= text_field_tag :count, nil, placeholder: "0" %>
+        <%= text_field_tag :nulls, params[:nulls].presence, placeholder: "0" %>
       </div>
     </div>
     <hr>
diff --git a/config/locales/officing.en.yml b/config/locales/officing.en.yml
index 03336efdd..2ba703672 100644
--- a/config/locales/officing.en.yml
+++ b/config/locales/officing.en.yml
@@ -66,7 +66,7 @@ en:
         date: "Date"
         select_booth: "Select booth"
         select_date: "Select date"
-        ballots_blank: "Blank ballots"
+        ballots_white: "Blank ballots"
         ballots_null: "Invalid ballots"
         submit: "Save"
         results_list: "Your results"
@@ -76,6 +76,8 @@ en:
         results: Results
         table_answer: Answer
         table_votes: Votes
+        table_whites: "Blank ballots"
+        table_nulls: "Invalid ballots"
     residence:
       flash:
         create: "Document verified with Census"
diff --git a/config/locales/officing.es.yml b/config/locales/officing.es.yml
index 0f8c87067..205818971 100644
--- a/config/locales/officing.es.yml
+++ b/config/locales/officing.es.yml
@@ -66,7 +66,7 @@ es:
         date: "Día"
         select_booth: "Elige urna"
         select_date: "Elige día"
-        ballots_blank: "Papeletas en blanco"
+        ballots_white: "Papeletas en blanco"
         ballots_null: "Papeletas nulas"
         submit: "Guardar"
         results_list: "Tus resultados"
@@ -76,6 +76,8 @@ es:
         results: "Resultados"
         table_answer: Respuesta
         table_votes: Votos
+        table_whites: Papeletas en blanco
+        table_nulls: Papeletas en blanco
     residence:
       flash:
         create: "Documento verificado con el Padrón"
diff --git a/db/migrate/20170203163304_create_poll_white_results.rb b/db/migrate/20170203163304_create_poll_white_results.rb
new file mode 100644
index 000000000..2ebfc93b1
--- /dev/null
+++ b/db/migrate/20170203163304_create_poll_white_results.rb
@@ -0,0 +1,18 @@
+class CreatePollWhiteResults < ActiveRecord::Migration
+  def change
+    create_table :poll_white_results do |t|
+      t.integer :author_id
+      t.integer :amount
+      t.string  :origin
+      t.date    :date
+      t.integer :booth_assignment_id
+      t.integer :officer_assignment_id
+      t.text    :amount_log,                default: ""
+      t.text    :officer_assignment_id_log, default: ""
+      t.text    :author_id_log,             default: ""
+    end
+
+    add_index :poll_white_results, :officer_assignment_id
+    add_index :poll_white_results, :booth_assignment_id
+  end
+end
diff --git a/db/migrate/20170203163317_create_poll_null_results.rb b/db/migrate/20170203163317_create_poll_null_results.rb
new file mode 100644
index 000000000..9c138cf65
--- /dev/null
+++ b/db/migrate/20170203163317_create_poll_null_results.rb
@@ -0,0 +1,18 @@
+class CreatePollNullResults < ActiveRecord::Migration
+  def change
+    create_table :poll_null_results do |t|
+      t.integer :author_id
+      t.integer :amount
+      t.string  :origin
+      t.date    :date
+      t.integer :booth_assignment_id
+      t.integer :officer_assignment_id
+      t.text    :amount_log,                default: ""
+      t.text    :officer_assignment_id_log, default: ""
+      t.text    :author_id_log,             default: ""
+    end
+
+    add_index :poll_null_results, :officer_assignment_id
+    add_index :poll_null_results, :booth_assignment_id
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 95028b472..b44907334 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20170202151151) do
+ActiveRecord::Schema.define(version: 20170203163317) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -411,6 +411,21 @@ ActiveRecord::Schema.define(version: 20170202151151) do
 
   add_index "poll_final_recounts", ["booth_assignment_id"], name: "index_poll_final_recounts_on_booth_assignment_id", using: :btree
 
+  create_table "poll_null_results", force: :cascade do |t|
+    t.integer "author_id"
+    t.integer "amount"
+    t.string  "origin"
+    t.date    "date"
+    t.integer "booth_assignment_id"
+    t.integer "officer_assignment_id"
+    t.text    "amount_log",                default: ""
+    t.text    "officer_assignment_id_log", default: ""
+    t.text    "author_id_log",             default: ""
+  end
+
+  add_index "poll_null_results", ["booth_assignment_id"], name: "index_poll_null_results_on_booth_assignment_id", using: :btree
+  add_index "poll_null_results", ["officer_assignment_id"], name: "index_poll_null_results_on_officer_assignment_id", using: :btree
+
   create_table "poll_officer_assignments", force: :cascade do |t|
     t.integer  "booth_assignment_id"
     t.integer  "officer_id"
@@ -498,6 +513,21 @@ ActiveRecord::Schema.define(version: 20170202151151) do
   add_index "poll_voters", ["poll_id"], name: "index_poll_voters_on_poll_id", using: :btree
   add_index "poll_voters", ["user_id"], name: "index_poll_voters_on_user_id", using: :btree
 
+  create_table "poll_white_results", force: :cascade do |t|
+    t.integer "author_id"
+    t.integer "amount"
+    t.string  "origin"
+    t.date    "date"
+    t.integer "booth_assignment_id"
+    t.integer "officer_assignment_id"
+    t.text    "amount_log",                default: ""
+    t.text    "officer_assignment_id_log", default: ""
+    t.text    "author_id_log",             default: ""
+  end
+
+  add_index "poll_white_results", ["booth_assignment_id"], name: "index_poll_white_results_on_booth_assignment_id", using: :btree
+  add_index "poll_white_results", ["officer_assignment_id"], name: "index_poll_white_results_on_officer_assignment_id", using: :btree
+
   create_table "polls", force: :cascade do |t|
     t.string   "name"
     t.datetime "starts_at"
diff --git a/spec/factories.rb b/spec/factories.rb
index 0e94ecf88..70e3ad01c 100644
--- a/spec/factories.rb
+++ b/spec/factories.rb
@@ -466,6 +466,16 @@ FactoryGirl.define do
     answer { question.valid_answers.sample }
   end
 
+  factory :poll_white_result, class: 'Poll::WhiteResult' do
+    association :author, factory: :user
+    origin { 'web' }
+  end
+
+  factory :poll_null_result, class: 'Poll::NullResult' do
+    association :author, factory: :user
+    origin { 'web' }
+  end
+
   factory :officing_residence, class: 'Officing::Residence' do
     user
     document_number
diff --git a/spec/features/officing/results_spec.rb b/spec/features/officing/results_spec.rb
index 586ed387e..e918edd59 100644
--- a/spec/features/officing/results_spec.rb
+++ b/spec/features/officing/results_spec.rb
@@ -62,6 +62,10 @@ feature 'Officing Results' do
 
     fill_in "questions[#{@question_2.id}][0]", with: '333'
     fill_in "questions[#{@question_2.id}][1]", with: '444'
+
+    fill_in "whites", with: '66'
+    fill_in "nulls",  with: '77'
+
     click_button 'Save'
 
     expect(page).to have_content('Your results')
@@ -116,6 +120,16 @@ feature 'Officing Results' do
                       date: @poll.ends_at,
                       question: @question_1,
                       amount: 33)
+    white_result = create(:poll_white_result,
+                      officer_assignment: @officer_assignment,
+                      booth_assignment: @officer_assignment.booth_assignment,
+                      date: @poll.ends_at,
+                      amount: 21)
+    null_result = create(:poll_null_result,
+                      officer_assignment: @officer_assignment,
+                      booth_assignment: @officer_assignment.booth_assignment,
+                      date: @poll.ends_at,
+                      amount: 44)
 
     visit officing_poll_results_path(@poll,
                                      date: I18n.l(@poll.ends_at.to_date),
@@ -134,6 +148,8 @@ feature 'Officing Results' do
       within("#question_#{@question_2.id}_#{i}_result") { expect(page).to have_content(answer) }
     end
 
+    within('#white_results') { expect(page).to have_content('21') }
+    within('#null_results') { expect(page).to have_content('44') }
   end
 
 end
\ No newline at end of file
diff --git a/spec/models/poll/null_result_spec.rb b/spec/models/poll/null_result_spec.rb
new file mode 100644
index 000000000..9293027d1
--- /dev/null
+++ b/spec/models/poll/null_result_spec.rb
@@ -0,0 +1,70 @@
+require 'rails_helper'
+
+describe Poll::NullResult do
+
+  describe "logging changes" do
+    it "should update amount_log if amount changes" do
+      null_result = create(:poll_null_result, amount: 33)
+
+      expect(null_result.amount_log).to eq("")
+
+      null_result.amount = 33
+      null_result.save
+      null_result.amount = 32
+      null_result.save
+      null_result.amount = 34
+      null_result.save
+
+      expect(null_result.amount_log).to eq(":33:32")
+    end
+
+    it "should update officer_assignment_id_log if amount changes" do
+      null_result = create(:poll_null_result, amount: 33)
+
+      expect(null_result.amount_log).to eq("")
+      expect(null_result.officer_assignment_id_log).to eq("")
+
+      null_result.amount = 33
+      null_result.officer_assignment_id = 1
+      null_result.save
+
+      null_result.amount = 32
+      null_result.officer_assignment_id = 2
+      null_result.save
+
+      null_result.amount = 34
+      null_result.officer_assignment_id = 3
+      null_result.save
+
+      expect(null_result.amount_log).to eq(":33:32")
+      expect(null_result.officer_assignment_id_log).to eq(":1:2")
+    end
+
+    it "should update author_id if amount changes" do
+      null_result = create(:poll_null_result, amount: 33)
+
+      expect(null_result.amount_log).to eq("")
+      expect(null_result.author_id_log).to eq("")
+
+      author_A = create(:poll_officer).user
+      author_B = create(:poll_officer).user
+      author_C = create(:poll_officer).user
+
+      null_result.amount = 33
+      null_result.author_id = author_A.id
+      null_result.save!
+
+      null_result.amount = 32
+      null_result.author_id = author_B.id
+      null_result.save!
+
+      null_result.amount = 34
+      null_result.author_id = author_C.id
+      null_result.save!
+
+      expect(null_result.amount_log).to eq(":33:32")
+      expect(null_result.author_id_log).to eq(":#{author_A.id}:#{author_B.id}")
+    end
+  end
+
+end
\ No newline at end of file
diff --git a/spec/models/poll/white_result_spec.rb b/spec/models/poll/white_result_spec.rb
new file mode 100644
index 000000000..66a036cfe
--- /dev/null
+++ b/spec/models/poll/white_result_spec.rb
@@ -0,0 +1,70 @@
+require 'rails_helper'
+
+describe Poll::WhiteResult do
+
+  describe "logging changes" do
+    it "should update amount_log if amount changes" do
+      white_result = create(:poll_white_result, amount: 33)
+
+      expect(white_result.amount_log).to eq("")
+
+      white_result.amount = 33
+      white_result.save
+      white_result.amount = 32
+      white_result.save
+      white_result.amount = 34
+      white_result.save
+
+      expect(white_result.amount_log).to eq(":33:32")
+    end
+
+    it "should update officer_assignment_id_log if amount changes" do
+      white_result = create(:poll_white_result, amount: 33)
+
+      expect(white_result.amount_log).to eq("")
+      expect(white_result.officer_assignment_id_log).to eq("")
+
+      white_result.amount = 33
+      white_result.officer_assignment_id = 1
+      white_result.save
+
+      white_result.amount = 32
+      white_result.officer_assignment_id = 2
+      white_result.save
+
+      white_result.amount = 34
+      white_result.officer_assignment_id = 3
+      white_result.save
+
+      expect(white_result.amount_log).to eq(":33:32")
+      expect(white_result.officer_assignment_id_log).to eq(":1:2")
+    end
+
+    it "should update author_id if amount changes" do
+      white_result = create(:poll_white_result, amount: 33)
+
+      expect(white_result.amount_log).to eq("")
+      expect(white_result.author_id_log).to eq("")
+
+      author_A = create(:poll_officer).user
+      author_B = create(:poll_officer).user
+      author_C = create(:poll_officer).user
+
+      white_result.amount = 33
+      white_result.author_id = author_A.id
+      white_result.save!
+
+      white_result.amount = 32
+      white_result.author_id = author_B.id
+      white_result.save!
+
+      white_result.amount = 34
+      white_result.author_id = author_C.id
+      white_result.save!
+
+      expect(white_result.amount_log).to eq(":33:32")
+      expect(white_result.author_id_log).to eq(":#{author_A.id}:#{author_B.id}")
+    end
+  end
+
+end
\ No newline at end of file