diff --git a/lib/api.js b/lib/api.js
index f020672..241896f 100644
--- a/lib/api.js
+++ b/lib/api.js
@@ -12,12 +12,18 @@ var
 
 module.exports = {
   request: function (https, api, req, data, responseObject, callback) {
-    request(
-      templates.apiSignature({
-        https: https,
-        api: api,
-        xml: templates[req](data)
-      }),
+    var xml = templates[req](data);
+    // Remove whitespace between XML elements
+    xml = xml.replace(/>\s*</mg, '><');
+
+    var protocol = https ? 'https://' : 'http://'; 
+    var url = protocol + 'secure.shippingapis.com/ShippingAPI.dll';
+    
+    request({
+        url: url,
+        method: 'GET',
+        qs: { API: api, XML: xml }
+      },
       function (error, response, body) {
         if (!error && response.statusCode === 200) {
           parser.parseString(body, function (error, json) {
diff --git a/lib/apis/domesticShippingLabel.js b/lib/apis/domesticShippingLabel.js
new file mode 100644
index 0000000..1555a6f
--- /dev/null
+++ b/lib/apis/domesticShippingLabel.js
@@ -0,0 +1,12 @@
+'use strict';
+
+var api = require('../api');
+
+module.exports = {
+  deliveryConfirmation: function (data, callback) {
+    api.request(true, 'DeliveryConfirmationV4', 'deliveryConfirmationV4', data, 'deliveryConfirmationV4.0Response', callback);
+  },
+  deliveryConfirmCeritfy: function (data, callback) {
+    api.request(true, 'DelivConfirmCertifyV4', 'delivConfirmCertifyV4', data, 'delivConfirmCertifyV4.0Response', callback);
+  }
+};
diff --git a/lib/templates/delivConfirmCertifyV4.hbs b/lib/templates/delivConfirmCertifyV4.hbs
new file mode 100644
index 0000000..b929bd9
--- /dev/null
+++ b/lib/templates/delivConfirmCertifyV4.hbs
@@ -0,0 +1,65 @@
+<DelivConfirmCertifyV4.0Request USERID="{{userID}}">
+  {{#if option}}<Option>{{option}}</Option>{{/if}}
+  {{#if revision}}<Revision>{{revision}}</Revision>{{/if}}
+  <ImageParameters>
+   <ImageParameter>{{imageParameter}}</ImageParameter>  
+  </ImageParameters>
+  <FromName>{{fromName}}</FromName>
+  <FromFirm>{{fromFirm}}</FromFirm>
+  <FromAddress1>{{fromAddress1}}</FromAddress1>
+  <FromAddress2>{{fromAddress2}}</FromAddress2>
+  <FromCity>{{fromCity}}</FromCity>
+  <FromState>{{fromState}}</FromState>
+  <FromZip5>{{fromZip5}}</FromZip5>
+  <FromZip4>{{fromZip4}}</FromZip4>
+  <ToName>{{toName}}</ToName>
+  <ToFirm>{{toFirm}}</ToFirm>
+  <ToAddress1>{{toAddress1}}</ToAddress1>
+  <ToAddress2>{{toAddress2}}</ToAddress2>
+  <ToCity>{{toCity}}</ToCity>
+  <ToState>{{toState}}</ToState>
+  <ToZip5>{{toZip5}}</ToZip5>
+  <ToZip4>{{toZip4}}</ToZip4>
+  <ToPOBoxFlag>{{toPOBoxFlag}}</ToPOBoxFlag>
+  <WeightInOunces>{{weightInOunces}}</WeightInOunces>
+  <ServiceType>{{serviceType}}</ServiceType>
+  <InsuredAmount>{{insuredAmount}}</InsuredAmount>
+  <ImageType>{{imageType}}</ImageType>
+  <LabelDate>{{labelDate}}</LabelDate>
+  <AllowNonCleansedDestAddr>{{allowNonCleansedDestAddr}}</AllowNonCleansedDestAddr>
+  <Container>{{container}}</Container>
+  <Size>{{size}}</Size>
+  <Width>{{width}}</Width>
+  <Length>{{length}}</Length>
+  <Height>{{height}}</Height>
+  <Girth>{{girth}}</Girth>
+  <ReturnCommitments>{{returnCommitments}}</ReturnCommitments>
+  <ShippingContents>
+    {{#each shippingContents}}
+    <ItemDetail>
+      <Description>{{description}}</Description>
+      <Quantity>{{quantity}}</Quantity>
+      <Value>{{value}}</Value>
+      <NetPounds>{{netPounds}}</NetPounds>
+      <NetOunces>{{netOunces}}</NetOunces>
+      <HSTariffNumber>{{hSTariffNumber}}</HSTariffNumber>
+      <CountryOfOrigin>{{countryOfOrigin}}</CountryOfOrigin>
+    </ItemDetail>
+    {{/each}}
+  </ShippingContents>
+  <FromPhone>{{fromPhone}}</FromPhone>
+  <SenderMID>{{senderMID}}</SenderMID>
+  <ToPhone>{{toPhone}}</ToPhone>
+  <CustomsContentType>{{customsContentType}}</CustomsContentType>
+  <ContentComments>{{contentComments}}</ContentComments>
+  <RestrictionType>{{restrictionType}}</RestrictionType>
+  <RestrictionComments>{{restrictionComments}}</RestrictionComments>
+  <AESITN>{{aESITN}}</AESITN>
+  <ImportersReference>{{importersReference}}</ImportersReference>
+  <ImportersContact>{{importersContact}}</ImportersContact>
+  <ExportersReference>{{exportersReference}}</ExportersReference>
+  <ExportersContact>{{exportersContact}}</ExportersContact>
+  <InvoiceNumber>{{invoiceNumber}}</InvoiceNumber>
+  <LicenseNumber>{{licenseNumber}}</LicenseNumber>
+  <CertificateNumber>{{certificateNumber}}</CertificateNumber>
+</DelivConfirmCertifyV4.0Request>
\ No newline at end of file
diff --git a/lib/templates/deliveryConfirmationV4.hbs b/lib/templates/deliveryConfirmationV4.hbs
new file mode 100644
index 0000000..0ee42b1
--- /dev/null
+++ b/lib/templates/deliveryConfirmationV4.hbs
@@ -0,0 +1,92 @@
+<?xml version="1.0" encoding="UTF‐8"?>
+<DeliveryConfirmationV4.0Request USERID="{{userID}}">
+  <Option>{{option}}</Option>
+  <Revision>{{revision}}</Revision>
+  {{#if imageParameters}}
+  <ImageParameters>
+    {{#each imageParameters.options}}
+      <ImageParameter>{{value}}</ImageParameter>
+    {{/each}}
+    {{#each labelSequence}}
+      <LabelSequence>
+        <PackageNumber>{{packageNumber}}</PackageNumber>
+        <TotalPackages>{{totalPackages}}</TotalPackages>
+      </LabelSequence>
+    {{/each}}
+  </ImageParameters>
+  {{/if}}
+  <FromName>{{fromName}}</FromName>
+  <FromFirm>{{fromFirm}}</FromFirm>
+  <FromAddress1>{{fromAddress1}}</FromAddress1>
+  <FromAddress2>{{fromAddress2}}</FromAddress2>
+  <FromCity>{{fromCity}}</FromCity>
+  <FromState>{{fromState}}</FromState>
+  <FromZip5>{{fromZip5}}</FromZip5>
+  <FromZip4>{{fromZip4}}</FromZip4>
+  <ToName>{{toName}}</ToName>
+  <ToFirm>{{toFirm}}</ToFirm>
+  <ToAddress1>{{toAddress1}}</ToAddress1>
+  <ToAddress2>{{toAddress2}}</ToAddress2>
+  <ToCity>{{toCity}}</ToCity>
+  <ToState>{{toState}}</ToState>
+  <ToZip5>{{toZip5}}</ToZip5>
+  <ToZip4>{{toZip4}}</ToZip4>
+  {{#if toPOBoxFlag}}<ToPOBoxFlag>{{toPOBoxFlag}}</ToPOBoxFlag>{{/if}}
+  <WeightInOunces>{{weightInOunces}}</WeightInOunces>
+  <ServiceType>{{serviceType}}</ServiceType>
+  {{#if insuredAmount}}<InsuredAmount>{{insuredAmount}}</InsuredAmount>{{/if}}
+  <WaiverOfSignature>{{waiverOfSignature}}</WaiverOfSignature>
+  <SeparateReceiptPage>{{separateReceiptPage}}</SeparateReceiptPage>
+  {{#if poZipCode}}<POZipCode>{{poZipCode}}</POZipCode>{{/if}}
+  <ImageType>{{imageType}}</ImageType>
+  {{#if labelDate}}<LabelDate>{{labelDate}}</LabelDate>{{/if}}
+  {{#if customerRefNo}}<CustomerRefNo>{{customerRefNo}}</CustomerRefNo>{{/if}}
+  <AddressServiceRequested>{{addressServiceRequested}}</AddressServiceRequested>
+  {{#if senderName}}<SenderName>{{senderName}}</SenderName>{{/if}}
+  {{#if senderEmail}}<SenderEMail>{{senderEmail}}</SenderEMail>{{/if}}
+  {{#if recipientName}}<RecipientName>{{recipientName}}</RecipientName>{{/if}}
+  {{#if recipientEmail}}<RecipientEMail>{{recipientEmail}}</RecipientEMail>{{/if}}
+  {{#if allowNonCleansedDestAddr}}
+    <AllowNonCleansedDestAddr>{{allowNonCleansedDestAddr}}</AllowNonCleansedDestAddr>
+  {{/if}}
+  {{#if holdForManifest}}<HoldForManifest>{{holdForManifest}}</HoldForManifest>{{/if}}
+  {{#if container}}<Container>{{container}}</Container>{{/if}}
+  {{#if size}}<Size>{{size}}</Size>{{/if}}
+  {{#if width}}<Width>{{width}}</Width>{{/if}}
+  {{#if length}}<Length>{{length}}</Length>{{/if}}
+  {{#if height}}<Height>{{height}}</Height>{{/if}}
+  {{#if girth}}<Girth>{{girth}}</Girth>{{/if}}
+  {{#if machinable}}<Machinable>{{machinable}}</Machinable>{{/if}}
+  {{#if commercialPrice}}<CommercialPrice>{{commercialPrice}}</CommercialPrice>{{/if}}
+  {{#if extraServices}}
+    <ExtraServices>
+      {{#each extraServices}}
+        <ExtraService>{{value}}</ExtraService>
+      {{/each}}
+    </ExtraServices>
+  {{/if}}
+  {{#if returnCommitments}}<ReturnCommitments>{{returnCommitments}}</ReturnCommitments>{{/if}}
+  {{#if groundOnly}}<GroundOnly>{{groundOnly}}</GroundOnly>{{/if}}
+  {{#if content}}
+  <Content>
+    <ContentType>{{content.type}}</ContentType>
+    <ContentDescription>{{content.description}}</ContentDescription>
+  </Content>
+  {{/if}}
+  {{#if meterData}}
+  <MeterData>
+    <MeterVendorID>{{meterData.meterVendorID}}</MeterVendorID>
+    <MeterSerialNumber>{{meterData.meterSerialNumber}}</MeterSerialNumber>
+    <MeterModelID>{{meterData.meterModelID}}</MeterModelID>
+    <RateCategory>{{meterData.rateCategory}}</RateCategory>
+    <IndiciumCreationRecordDate>{{meterData.indiciumCreationRecordDate}}</IndiciumCreationRecordDate>
+    <IBI>{{meterData.IBI}}</IBI>
+  </MeterData>
+  {{/if}}
+  {{#if customsContentType}}
+    <CustomsContentType>{{customsContentType}}</CustomsContentType>
+  {{/if}}
+  {{#if contentComments}}
+    <ContentComments>{{contentComments}}</ContentComments>
+  {{/if}}
+</DeliveryConfirmationV4.0Request>
diff --git a/lib/usps-web-tools-sdk.js b/lib/usps-web-tools-sdk.js
index 9098d60..467c1bf 100644
--- a/lib/usps-web-tools-sdk.js
+++ b/lib/usps-web-tools-sdk.js
@@ -7,6 +7,7 @@ module.exports = {
   configure: configure.configure,
   customFormLabel: require('./apis/customFormLabel'),
   domesticMailServiceStandards: require('./apis/domesticMailServiceStandards'),
+  domesticShippingLabel: require('./apis/domesticShippingLabel'),
   options: configure.options,
   rateCalculator: require('./apis/rateCalculator'),
   sdcServiceStandards: require('./apis/sdcServiceStandards'),