diff --git a/lib/constant_contact.rb b/lib/constant_contact.rb
index f166e7b..dc53796 100644
--- a/lib/constant_contact.rb
+++ b/lib/constant_contact.rb
@@ -9,6 +9,7 @@
 require File.join(directory, 'constant_contact', 'member')
 require File.join(directory, 'constant_contact', 'contact')
 require File.join(directory, 'constant_contact', 'campaign')
+require File.join(directory, 'constant_contact', 'campaign_schedule')
 require File.join(directory, 'constant_contact', 'campaign_event', 'campaign_event_base')
 require File.join(directory, 'constant_contact', 'campaign_event', 'bounce_event')
 require File.join(directory, 'constant_contact', 'campaign_event', 'forward_event')
diff --git a/lib/constant_contact/campaign.rb b/lib/constant_contact/campaign.rb
index 0a765f6..a34d18c 100644
--- a/lib/constant_contact/campaign.rb
+++ b/lib/constant_contact/campaign.rb
@@ -6,15 +6,15 @@ class Campaign < Base
     # SCHEDULED   All campaigns that are currently scheduled to be sent some time in the future
     # DRAFT   All campaigns that have not yet been scheduled for delivery
     # RUNNING   All campaigns that are currently being processed and delivered
-    @@column_names = [:archive_status, :archive_url, :bounces, :campaign_type, :clicks, :contact_lists, :date, 
-                      :email_content, :email_content_format, :email_text_content, :forward_email_link_text, :forwards, 
-                      :from_email, :from_name, :greeting_name, :greeting_salutation, :greeting_string, 
-                      :include_forward_email, :include_subscribe_link, :last_edit_date, :name, :opens, :opt_outs, 
-                      :organization_address1, :organization_address2, :organization_address3, :organization_city, 
-                      :organization_country, :organization_international_state, :organization_name, :organization_postal_code, 
-                      :organization_state, :permission_reminder, :reply_to_email, :sent, :spam_reports, :status, 
-                      :style_sheet, :subject, :subscribe_link_text, :view_as_webpage, :view_as_webpage_link_text, :view_as_webpage_text] 
-    
+    @@column_names = [:archive_status, :archive_url, :bounces, :campaign_type, :clicks, :contact_lists, :date,
+                      :email_content, :email_content_format, :email_text_content, :forward_email_link_text, :forwards,
+                      :from_email, :from_name, :greeting_name, :greeting_salutation, :greeting_string,
+                      :include_forward_email, :include_subscribe_link, :last_edit_date, :name, :opens, :opt_outs,
+                      :organization_address1, :organization_address2, :organization_address3, :organization_city,
+                      :organization_country, :organization_international_state, :organization_name, :organization_postal_code,
+                      :organization_state, :permission_reminder, :reply_to_email, :sent, :spam_reports, :status,
+                      :style_sheet, :subject, :subscribe_link_text, :view_as_webpage, :view_as_webpage_link_text, :view_as_webpage_text]
+
 
     # Setup defaults when creating a new object since
     # CC requires so many extraneous fields to be present
@@ -24,24 +24,31 @@ def initialize(*args)
       obj.set_defaults
       obj
     end
-        
+
     def to_xml
       xml = Builder::XmlMarkup.new
       xml.tag!("Campaign", :xmlns => "http://ws.constantcontact.com/ns/1.0/") do
         self.attributes.reject {|k,v| k == 'FromEmail' || k == 'ReplyToEmail' || k == 'ContactList'}.each{|k, v| xml.tag!( k.to_s.camelize, v )}
+
         # Overrides the default formatting above to CC's required format.
       	xml.tag!("ReplyToEmail") do
           xml.tag!('Email', :id => self.reply_to_email_url)
     	  end
+
       	xml.tag!("FromEmail") do
           xml.tag!('Email', :id => self.from_email_url)
     	  end
-      	xml.tag!("ContactLists") do 
-      	  xml.tag!("ContactList", :id => self.contact_list)
+
+      	xml.tag!("ContactLists") do
+      		if self.contact_list.kind_of?(Array) then
+      			self.contact_list.each {|x| xml.tag!("ContactList", :id => x)}
+      		else
+      	  	xml.tag!("ContactList", :id => self.contact_list)
+      	  end
       	end
-      end        
+      end
     end
-    
+
     def from_email_url
       EmailAddress.find(self.from_email).id
     end
@@ -49,8 +56,8 @@ def from_email_url
     def reply_to_email_url
       from_email_url
     end
-    
-    
+
+
     protected
     def set_defaults
       self.view_as_webpage                  = 'NO' unless attributes.has_key?('ViewAsWebpage')
@@ -76,31 +83,31 @@ def set_defaults
       self.organization_country             = 'US' unless attributes.has_key?('OrganizationCountry')
       self.organization_postal_code         = '64108' unless attributes.has_key?('OrganizationPostalCode')
     end
-    
+
     # Formats data if present.
     def before_save
       self.email_text_content = "<Text>#{email_text_content}</Text>" unless email_text_content.match /^\<Text/
-      self.date               = self.date.strftime(DATE_FORMAT) if attributes.has_key?('Date')      
+      self.date               = self.date.strftime(DATE_FORMAT) if attributes.has_key?('Date') && self.date.is_a?(Time)
     end
-    
-    
+
+
     def validate
       # NOTE: Needs to be uppercase!
       unless attributes.has_key?('EmailContentFormat') && ['HTML', 'XHTML'].include?(email_content_format)
-        errors.add(:email_content_format, 'must be either HTML or XHTML (the latter for advanced email features)') 
+        errors.add(:email_content_format, 'must be either HTML or XHTML (the latter for advanced email features)')
       end
-      
+
       if attributes.has_key?('ViewAsWebpage') && view_as_webpage.downcase == 'yes'
         unless attributes['ViewAsWebpageLinkText'].present? && attributes['ViewAsWebpageText'].present?
           errors.add(:view_as_webpage, "You need to set view_as_webpage_link_text and view_as_webpage_link if view_as_webpage is YES")
         end
       end
 
-      errors.add(:email_content, 'cannot be blank') unless attributes.has_key?('EmailContent')       
-      errors.add(:email_text_content, 'cannot be blank') unless attributes.has_key?('EmailTextContent') 
-      errors.add(:name, 'cannot be blank') unless attributes.has_key?('Name') 
-      errors.add(:subject, 'cannot be blank') unless attributes.has_key?('Subject') 
+      errors.add(:email_content, 'cannot be blank') unless attributes.has_key?('EmailContent')
+      errors.add(:email_text_content, 'cannot be blank') unless attributes.has_key?('EmailTextContent')
+      errors.add(:name, 'cannot be blank') unless attributes.has_key?('Name')
+      errors.add(:subject, 'cannot be blank') unless attributes.has_key?('Subject')
     end
-    
+
   end
 end
diff --git a/lib/constant_contact/campaign_schedule.rb b/lib/constant_contact/campaign_schedule.rb
new file mode 100644
index 0000000..8f4948c
--- /dev/null
+++ b/lib/constant_contact/campaign_schedule.rb
@@ -0,0 +1,56 @@
+module ConstantContact
+  class CampaignSchedule < Base
+    DATE_FORMAT = "%Y-%m-%dT%H:%M:%SZ"
+    
+    attr_accessor :campaign_id
+
+    self.prefix = "/campaigns/:campaign_id/"
+
+    def initialize(*args)
+      obj = super
+      obj
+    end
+    
+    def self.collection_name
+      'schedules'
+    end
+    
+    def to_xml
+      xml = Builder::XmlMarkup.new
+      xml.tag!('Schedule', :xmlns => 'http://ws.constantcontact.com/ns/1.0/', :id => schedule_url) do
+        self.attributes.reject {|k,v| k.to_s.camelize == 'CampaignId'}.each{|k, v| xml.tag!( k.to_s.camelize, v )}
+      end
+    end
+    
+    def campaign_url
+      'http://api.constantcontact.com'
+    end
+
+    def campaign_path
+      '/ws/customers/' + self.class.user + '/campaigns/' + self.prefix_options[:campaign_id].to_s
+    end
+    
+    def schedule_path
+      '/schedules/1'
+    end
+    
+    def schedule_url
+      campaign_url + campaign_path + schedule_path
+    end
+
+    # Overridden from CTCT::Base
+    def encode
+      tn = Time.now.strftime(DATE_FORMAT)
+      "<entry xmlns=\"http://www.w3.org/2005/Atom\">
+        <link href=\"#{self.campaign_path}#{self.schedule_path}\" rel=\"edit\"/>
+        <id>#{self.schedule_url}</id>
+        <title type=\"text\">#{tn}</title>
+        <updated>#{tn}</updated>
+        <author><name>WHERE, Inc</name></author>
+        <content type=\"application/vnd.ctct+xml\">
+        #{self.to_xml}
+        </content>
+      </entry>"
+    end
+  end
+end
diff --git a/lib/constant_contact/version.rb b/lib/constant_contact/version.rb
index d818219..cf6cb7f 100644
--- a/lib/constant_contact/version.rb
+++ b/lib/constant_contact/version.rb
@@ -1,3 +1,3 @@
 module ConstantContact
-  VERSION = '1.4.0'.freeze
-end
\ No newline at end of file
+  VERSION = '1.5.1'.freeze
+end