diff --git a/README.md b/README.md
index 89ec83d..b111cc0 100644
--- a/README.md
+++ b/README.md
@@ -102,9 +102,18 @@ There are four ways to cancel the automatic HTML5 validation.
 
 Set `auto_html5_validation: false` to `form_for` parameter.
 
-* View
+* View (disabling all)
 ```erb
 <%= form_for @user, auto_html5_validation: false do |f| %>
+
+  ...
+<% end %>
+```
+
+* View (disabling specific validation)
+```erb
+<%= form_for @user, auto_html5_validation: {required: false} do |f| %>
+
   ...
 <% end %>
 ```
@@ -113,11 +122,16 @@ Set `auto_html5_validation: false` to `form_for` parameter.
 
 Set `auto_html5_validation = false` attribute to ActiveModelish object.
 
-* Controller
+* Controller (disabling all)
 ```ruby
 @user = User.new auto_html5_validation: false
 ```
 
+* Controller (disabling specific validation)
+```ruby
+@user = User.new auto_html5_validation: {required: false}
+```
+
 * View
 ```erb
 <%= form_for @user do |f| %>
@@ -129,13 +143,20 @@ Set `auto_html5_validation = false` attribute to ActiveModelish object.
 
 Set `auto_html5_validation = false` to ActiveModelish class variable.
 
-* Model
+* Model (disabling all)
 ```ruby
 class User < ActiveRecord::Base
   self.auto_html5_validation = false
 end
 ```
 
+* Model (disabling specific validation)
+```ruby
+class User < ActiveRecord::Base
+  self.auto_html5_validation: {required: false}
+end
+```
+
 * Controller
 ```ruby
 @user = User.new
@@ -150,7 +171,18 @@ end
 
 ### 4. Globally (via HTML5Validators module configuration)
 
-Set `config.enabled = false` to Html5Validators module.
+* disabling all validation
+```ruby
+Html5Validators.enabled = false
+```
+
+* disabling specific validation
+```ruby
+Html5Validators.configure do |config|
+  config.validation[:required] = false
+end
+```
+
 Maybe you want to put this in your test_helper, or add a controller filter as
 follows for development mode.
 
diff --git a/lib/html5_validators.rb b/lib/html5_validators.rb
index 0feaf4f..f40a1b6 100644
--- a/lib/html5_validators.rb
+++ b/lib/html5_validators.rb
@@ -1,4 +1,5 @@
 require 'rails'
+require 'html5_validators/config'
 
 module Html5Validators
   @enabled = true
@@ -11,6 +12,15 @@ def self.enabled=(enable)
     @enabled = enable
   end
 
+  class << self
+    def validation_enabled?(validation, object)
+      enabled && config.validation[validation] &&
+        object.class.ancestors.include?(ActiveModel::Validations) &&
+        !(object.auto_html5_validation == false || object.auto_html5_validation.try(:[], validation) == false) &&
+        !(object.class.auto_html5_validation == false || object.class.auto_html5_validation.try(:[], validation) == false)
+    end
+  end
+
   class Railtie < ::Rails::Railtie #:nodoc:
     initializer 'html5_validators' do |app|
       ActiveSupport.on_load(:active_record) do
diff --git a/lib/html5_validators/action_view/form_helpers.rb b/lib/html5_validators/action_view/form_helpers.rb
index 75bb35a..69ab653 100644
--- a/lib/html5_validators/action_view/form_helpers.rb
+++ b/lib/html5_validators/action_view/form_helpers.rb
@@ -3,8 +3,8 @@ module ActionViewExtension
     module FormHelper
       def form_for(record, options = {}, &block)
         if record.respond_to?(:auto_html5_validation=)
-          if !Html5Validators.enabled || (options[:auto_html5_validation] == false)
-            record.auto_html5_validation = false
+          if options.key?(:auto_html5_validation)
+            record.auto_html5_validation = options[:auto_html5_validation]
           end
         end
         super
@@ -13,29 +13,23 @@ def form_for(record, options = {}, &block)
 
     module PresenceValidator
       def render
-        if object.class.ancestors.include?(ActiveModel::Validations) && (object.auto_html5_validation != false) && (object.class.auto_html5_validation != false)
-          @options["required"] ||= @options[:required] || object.class.attribute_required?(@method_name)
-        end
+        @options["required"] ||= @options[:required] || object.class.attribute_required?(@method_name) if Html5Validators.validation_enabled?(:required, object)
         super
       end
     end
 
     module LengthValidator
       def render
-        if object.class.ancestors.include?(ActiveModel::Validations) && (object.auto_html5_validation != false) && (object.class.auto_html5_validation != false)
-          @options["maxlength"] ||= @options[:maxlength] || object.class.attribute_maxlength(@method_name)
-          @options["minlength"] ||= @options[:minlength] || object.class.attribute_minlength(@method_name)
-        end
+        @options["maxlength"] ||= @options[:maxlength] || object.class.attribute_maxlength(@method_name) if Html5Validators.validation_enabled?(:maxlength, object)
+        @options["minlength"] ||= @options[:minlength] || object.class.attribute_minlength(@method_name) if Html5Validators.validation_enabled?(:minlength, object)
         super
       end
     end
 
     module NumericalityValidator
       def render
-        if object.class.ancestors.include?(ActiveModel::Validations) && (object.auto_html5_validation != false) && (object.class.auto_html5_validation != false)
-          @options["max"] ||= @options["max"] || @options[:max] || object.class.attribute_max(@method_name)
-          @options["min"] ||= @options["min"] || @options[:min] || object.class.attribute_min(@method_name)
-        end
+        @options["max"] ||= @options["max"] || @options[:max] || object.class.attribute_max(@method_name) if Html5Validators.validation_enabled?(:max, object)
+        @options["min"] ||= @options["min"] || @options[:min] || object.class.attribute_min(@method_name) if Html5Validators.validation_enabled?(:min, object)
         super
       end
     end
diff --git a/lib/html5_validators/action_view/form_helpers_rails3.rb b/lib/html5_validators/action_view/form_helpers_rails3.rb
index fa37fcf..c0fa6f8 100644
--- a/lib/html5_validators/action_view/form_helpers_rails3.rb
+++ b/lib/html5_validators/action_view/form_helpers_rails3.rb
@@ -4,8 +4,8 @@ module Helpers
     module FormHelper
       def form_for_with_auto_html5_validation_option(record, options = {}, &proc)
         if record.respond_to?(:auto_html5_validation=)
-          if !Html5Validators.enabled || (options[:auto_html5_validation] == false)
-            record.auto_html5_validation = false
+          if options.key?(:auto_html5_validation)
+            record.auto_html5_validation = options[:auto_html5_validation]
           end
         end
         form_for_without_auto_html5_validation_option record, options, &proc
@@ -15,39 +15,35 @@ def form_for_with_auto_html5_validation_option(record, options = {}, &proc)
 
     class InstanceTag
       def to_input_field_tag_with_html5_attributes(field_type, options = {})
-        if object.class.ancestors.include?(ActiveModel::Validations) && (object.auto_html5_validation != false) && (object.class.auto_html5_validation != false)
-          options["required"] ||= object.class.attribute_required?(method_name)
-          options["maxlength"] ||= object.class.attribute_maxlength(method_name)
-          options["minlength"] ||= object.class.attribute_minlength(method_name)
-          options["max"] ||= object.class.attribute_max(method_name)
-          options["min"] ||= object.class.attribute_min(method_name)
-        end
+        options["required"] ||= object.class.attribute_required?(method_name)  if Html5Validators.validation_enabled?(:required, object)
+        options["maxlength"] ||= object.class.attribute_maxlength(method_name) if Html5Validators.validation_enabled?(:maxlength, object)
+        options["minlength"] ||= object.class.attribute_minlength(method_name) if Html5Validators.validation_enabled?(:minlength, object)
+        options["max"] ||= object.class.attribute_max(method_name)             if Html5Validators.validation_enabled?(:max, object)
+        options["min"] ||= object.class.attribute_min(method_name)             if Html5Validators.validation_enabled?(:min, object)
+
         to_input_field_tag_without_html5_attributes field_type, options
       end
       alias_method_chain :to_input_field_tag, :html5_attributes
 
       def to_text_area_tag_with_html5_attributes(options = {})
-        if object.class.ancestors.include?(ActiveModel::Validations) && (object.auto_html5_validation != false) && (object.class.auto_html5_validation != false)
-          options["required"] ||= object.class.attribute_required?(method_name)
-          options["maxlength"] ||= object.class.attribute_maxlength(method_name)
-          options["minlength"] ||= object.class.attribute_minlength(method_name)
-        end
+        options["required"] ||= object.class.attribute_required?(method_name)  if Html5Validators.validation_enabled?(:required, object)
+        options["maxlength"] ||= object.class.attribute_maxlength(method_name) if Html5Validators.validation_enabled?(:maxlength, object)
+        options["minlength"] ||= object.class.attribute_minlength(method_name) if Html5Validators.validation_enabled?(:minlength, object)
+
         to_text_area_tag_without_html5_attributes options
       end
       alias_method_chain :to_text_area_tag, :html5_attributes
 
       def to_radio_button_tag_with_html5_attributes(tag_value, options = {})
-        if object.class.ancestors.include?(ActiveModel::Validations) && (object.auto_html5_validation != false) && (object.class.auto_html5_validation != false)
-          options["required"] ||= object.class.attribute_required?(method_name)
-        end
+        options["required"] ||= object.class.attribute_required?(method_name) if Html5Validators.validation_enabled?(:required, object)
+
         to_radio_button_tag_without_html5_attributes tag_value, options
       end
       alias_method_chain :to_radio_button_tag, :html5_attributes
 
       def to_check_box_tag_with_html5_attributes(options = {}, checked_value = "1", unchecked_value = "0")
-        if object.class.ancestors.include?(ActiveModel::Validations) && (object.auto_html5_validation != false) && (object.class.auto_html5_validation != false)
-          options["required"] ||= object.class.attribute_required?(method_name)
-        end
+        options["required"] ||= object.class.attribute_required?(method_name) if Html5Validators.validation_enabled?(:required, object)
+
         to_check_box_tag_without_html5_attributes options, checked_value, unchecked_value
       end
       alias_method_chain :to_check_box_tag, :html5_attributes
diff --git a/lib/html5_validators/action_view/form_helpers_ruby1.rb b/lib/html5_validators/action_view/form_helpers_ruby1.rb
index 2ff73ab..94403ab 100644
--- a/lib/html5_validators/action_view/form_helpers_ruby1.rb
+++ b/lib/html5_validators/action_view/form_helpers_ruby1.rb
@@ -2,23 +2,17 @@
 module Html5Validators
   module ActionViewExtension
     def inject_required_attribute
-      if object.class.ancestors.include?(ActiveModel::Validations) && (object.auto_html5_validation != false) && (object.class.auto_html5_validation != false)
-        @options["required"] ||= @options[:required] || object.class.attribute_required?(@method_name)
-      end
+      @options["required"] ||= @options[:required] || object.class.attribute_required?(@method_name) if Html5Validators.validation_enabled?(:required, object)
     end
 
     def inject_maxlength_attribute
-      if object.class.ancestors.include?(ActiveModel::Validations) && (object.auto_html5_validation != false) && (object.class.auto_html5_validation != false)
-        @options["maxlength"] ||= @options[:maxlength] || object.class.attribute_maxlength(@method_name)
-        @options["minlength"] ||= @options[:minlength] || object.class.attribute_minlength(@method_name)
-      end
+      @options["maxlength"] ||= @options[:maxlength] || object.class.attribute_maxlength(@method_name) if Html5Validators.validation_enabled?(:maxlength, object)
+      @options["minlength"] ||= @options[:minlength] || object.class.attribute_minlength(@method_name) if Html5Validators.validation_enabled?(:minlength, object)
     end
 
     def inject_numericality_attributes
-      if object.class.ancestors.include?(ActiveModel::Validations) && (object.auto_html5_validation != false) && (object.class.auto_html5_validation != false)
-        @options["max"] ||= @options["max"] || @options[:max] || object.class.attribute_max(@method_name)
-        @options["min"] ||= @options["min"] || @options[:min] || object.class.attribute_min(@method_name)
-      end
+      @options["max"] ||= @options["max"] || @options[:max] || object.class.attribute_max(@method_name) if Html5Validators.validation_enabled?(:max, object)
+      @options["min"] ||= @options["min"] || @options[:min] || object.class.attribute_min(@method_name) if Html5Validators.validation_enabled?(:min, object)
     end
   end
 end
@@ -29,8 +23,8 @@ module Helpers
     module FormHelper
       def form_for_with_auto_html5_validation_option(record, options = {}, &proc)
         if record.respond_to?(:auto_html5_validation=)
-          if !Html5Validators.enabled || (options[:auto_html5_validation] == false)
-            record.auto_html5_validation = false
+          if options.key?(:auto_html5_validation)
+            record.auto_html5_validation = options[:auto_html5_validation]
           end
         end
         form_for_without_auto_html5_validation_option record, options, &proc
diff --git a/lib/html5_validators/config.rb b/lib/html5_validators/config.rb
new file mode 100644
index 0000000..e979d2f
--- /dev/null
+++ b/lib/html5_validators/config.rb
@@ -0,0 +1,27 @@
+module Html5Validators
+  class << self
+    def configure
+      yield config
+    end
+
+    def config
+      @config ||= Configuration.new
+    end
+  end
+
+  class Configuration
+    include ActiveSupport::Configurable
+
+    config_accessor :validation
+  end
+
+  configure do |config|
+    config.validation = {
+      :required  => true,
+      :maxlength => true,
+      :minlength => true,
+      :max       => true,
+      :min       => true
+    }
+  end
+end
diff --git a/spec/fake_app.rb b/spec/fake_app.rb
index 2c6f88f..c0e30d4 100644
--- a/spec/fake_app.rb
+++ b/spec/fake_app.rb
@@ -16,12 +16,14 @@
   resources :people, :only => [:new, :create] do
     collection do
       get :new_without_html5_validation
+      get :new_without_required_html5_validation
       get :new_with_required_true
     end
   end
   resources :items, :only => [:new, :create] do
     collection do
       get :new_without_html5_validation
+      get :new_without_required_html5_validation
       get :new_with_required_true
     end
   end
@@ -65,6 +67,16 @@ def new_without_html5_validation
 ERB
   end
 
+  def new_without_required_html5_validation
+    @person = Person.new
+    render :inline => <<-ERB
+<%= form_for @person, :auto_html5_validation => {:required => false} do |f| %>
+<%= f.text_field :name %>
+<%= f.text_field :email %>
+<% end %>
+ERB
+  end
+
   def new_with_required_true
     @person = Person.new
     render :inline => <<-ERB
@@ -95,6 +107,16 @@ def new_without_html5_validation
 ERB
   end
 
+  def new_without_required_html5_validation
+    @item = Item.new
+    render :inline => <<-ERB
+<%= form_for @item, :auto_html5_validation => {:required => false} do |f| %>
+<%= f.text_field :name %>
+<%= f.text_area :description %>
+<% end %>
+ERB
+  end
+
   def new_with_required_true
     @item = Item.new
     render :inline => <<-ERB
diff --git a/spec/features/validation_spec.rb b/spec/features/validation_spec.rb
index 57f15f9..3552de7 100644
--- a/spec/features/validation_spec.rb
+++ b/spec/features/validation_spec.rb
@@ -33,6 +33,11 @@
 
       find('input#person_name')[:required].should be_nil
     end
+    scenario 'new_without_required_html5_validation form' do
+      visit '/people/new_without_required_html5_validation'
+
+      find('input#person_name')[:required].should be_nil
+    end
     scenario 'new_with_required_true form' do
       visit '/people/new_with_required_true'
 
@@ -40,35 +45,78 @@
     end
 
     context 'disabling html5_validation in class level' do
-      background do
-        Person.class_eval do |kls|
-          kls.auto_html5_validation = false
+      context 'disabling all' do
+        background do
+          Person.class_eval do |kls|
+            kls.auto_html5_validation = false
+          end
         end
-      end
-      after do
-        Person.class_eval do |kls|
-          kls.auto_html5_validation = nil
+        after do
+          Person.class_eval do |kls|
+            kls.auto_html5_validation = nil
+          end
+        end
+        scenario 'new form' do
+          visit '/people/new'
+
+          find('input#person_name')[:required].should be_nil
         end
       end
-      scenario 'new form' do
-        visit '/people/new'
 
-        find('input#person_name')[:required].should be_nil
+      context 'disabling requied only' do
+        background do
+          Person.class_eval do |kls|
+            kls.auto_html5_validation = {:required => false}
+          end
+        end
+        after do
+          Person.class_eval do |kls|
+            kls.auto_html5_validation = nil
+          end
+        end
+        scenario 'new form' do
+          visit '/people/new'
+
+          find('input#person_name')[:required].should be_nil
+        end
       end
     end
 
     context 'disabling html5_validations in gem' do
-      background do
-        Html5Validators.enabled = false
-      end
-      after do
-        Html5Validators.enabled = true
+      context 'disabling all' do
+        background do
+          Html5Validators.enabled = false
+        end
+        after do
+          Html5Validators.enabled = true
+        end
+        scenario 'new form' do
+          visit '/people/new'
+
+          find('input#person_name')[:required].should be_nil
+          find('textarea#person_bio')[:required].should be_nil
+        end
       end
-      scenario 'new form' do
-        visit '/people/new'
 
-        find('input#person_name')[:required].should be_nil
-        find('textarea#person_bio')[:required].should be_nil
+      context 'disabling required only' do
+        background do
+          Html5Validators.configure do |config|
+            config.validation[:required] = false
+          end
+        end
+
+        after do
+          Html5Validators.configure do |config|
+            config.validation[:required] = true
+          end
+        end
+
+        scenario 'new form' do
+          visit '/items/new'
+
+          find('input#item_name')[:required].should be_nil
+          find('textarea#item_description')[:required].should be_nil
+        end
       end
     end
   end
@@ -135,6 +183,11 @@
 
       find('input#item_name')[:required].should be_nil
     end
+    scenario 'new_without_required_html5_validation form' do
+      visit '/items/new_without_required_html5_validation'
+
+      find('input#item_name')[:required].should be_nil
+    end
     scenario 'new_with_required_true form' do
       visit '/items/new_with_required_true'
 
@@ -142,35 +195,78 @@
     end
 
     context 'disabling html5_validation in class level' do
-      background do
-        Item.class_eval do |kls|
-          kls.auto_html5_validation = false
+      context 'disabling all' do
+        background do
+          Item.class_eval do |kls|
+            kls.auto_html5_validation = false
+          end
         end
-      end
-      after do
-        Item.class_eval do |kls|
-          kls.auto_html5_validation = nil
+        after do
+          Item.class_eval do |kls|
+            kls.auto_html5_validation = nil
+          end
+        end
+        scenario 'new form' do
+          visit '/items/new'
+
+          find('input#item_name')[:required].should be_nil
         end
       end
-      scenario 'new form' do
-        visit '/items/new'
 
-        find('input#item_name')[:required].should be_nil
+      context 'disabling required only' do
+        background do
+          Item.class_eval do |kls|
+            kls.auto_html5_validation = {:required => false}
+          end
+        end
+        after do
+          Item.class_eval do |kls|
+            kls.auto_html5_validation = nil
+          end
+        end
+        scenario 'new form' do
+          visit '/items/new'
+
+          find('input#item_name')[:required].should be_nil
+        end
       end
     end
 
     context 'disabling html5_validations in gem' do
-      background do
-        Html5Validators.enabled = false
-      end
-      after do
-        Html5Validators.enabled = true
+      context 'disabling all' do
+        background do
+          Html5Validators.enabled = false
+        end
+        after do
+          Html5Validators.enabled = true
+        end
+        scenario 'new form' do
+          visit '/items/new'
+
+          find('input#item_name')[:required].should be_nil
+          find('textarea#item_description')[:required].should be_nil
+        end
       end
-      scenario 'new form' do
-        visit '/items/new'
 
-        find('input#item_name')[:required].should be_nil
-        find('textarea#item_description')[:required].should be_nil
+      context 'disabling required only' do
+        background do
+          Html5Validators.configure do |config|
+            config.validation[:required] = false
+          end
+        end
+
+        after do
+          Html5Validators.configure do |config|
+            config.validation[:required] = true
+          end
+        end
+
+        scenario 'new form' do
+          visit '/items/new'
+
+          find('input#item_name')[:required].should be_nil
+          find('textarea#item_description')[:required].should be_nil
+        end
       end
     end
   end