diff --git a/modules/aardvarkBidAdapter.js b/modules/aardvarkBidAdapter.js
index 02a2ebd5408..79e82e1ff90 100644
--- a/modules/aardvarkBidAdapter.js
+++ b/modules/aardvarkBidAdapter.js
@@ -19,7 +19,7 @@ export const spec = {
 
   isBidRequestValid: function(bid) {
     return ((typeof bid.params.ai === 'string') && !!bid.params.ai.length &&
-        (typeof bid.params.sc === 'string') && !!bid.params.sc.length);
+      (typeof bid.params.sc === 'string') && !!bid.params.sc.length);
   },
 
   buildRequests: function(validBidRequests, bidderRequest) {
@@ -82,7 +82,7 @@ export const spec = {
           });
         }
 
-        if (bidderRequest && bidderRequest.gdprConsent) {
+        if (bidderRequest.gdprConsent) {
           rMap.payload.gdpr = false;
           if (typeof bidderRequest.gdprConsent.gdprApplies === 'boolean') {
             rMap.payload.gdpr = bidderRequest.gdprConsent.gdprApplies;
@@ -96,11 +96,15 @@ export const spec = {
         auctionCodes.push(b.params.ai);
       }
 
+      if (bidderRequest.uspConsent) {
+        rMap.payload.us_privacy = bidderRequest.uspConsent
+      }
+
       rMap.shortCodes.push(b.params.sc);
       rMap.payload[b.params.sc] = b.bidId;
 
       if ((typeof b.params.host === 'string') && b.params.host.length &&
-          (b.params.host !== rMap.endpoint)) {
+        (b.params.host !== rMap.endpoint)) {
         rMap.endpoint = b.params.host;
       }
     });
@@ -166,28 +170,42 @@ export const spec = {
     return bidResponses;
   },
 
-  getUserSyncs: function(syncOptions, serverResponses, gdprConsent) {
+  getUserSyncs: function(syncOptions, serverResponses, gdprConsent, uspConsent) {
     const syncs = [];
-    var url = 'https://' + SYNC_ENDPOINT + '/cs';
+    const params = [];
     var gdprApplies = false;
     if (gdprConsent && (typeof gdprConsent.gdprApplies === 'boolean')) {
       gdprApplies = gdprConsent.gdprApplies;
     }
 
-    if (syncOptions.iframeEnabled) {
-      if (!hasSynced) {
-        hasSynced = true;
-        if (gdprApplies) {
-          url = url + '?g=1&c=' + encodeURIComponent(gdprConsent.consentString);
-        }
-        syncs.push({
-          type: 'iframe',
-          url: url
-        });
-      }
-    } else {
+    if (!syncOptions.iframeEnabled) {
       utils.logWarn('Aardvark: Please enable iframe based user sync.');
+      return syncs;
+    }
+
+    if (hasSynced) {
+      return syncs;
+    }
+
+    hasSynced = true;
+    if (gdprApplies) {
+      params.push(['g', '1']);
+      params.push(['c', gdprConsent.consentString]);
+    }
+
+    if (uspConsent) {
+      params.push(['us_privacy', uspConsent]);
     }
+
+    var queryStr = '';
+    if (params.length) {
+      queryStr = '?' + params.map(p => p[0] + '=' + encodeURIComponent(p[1])).join('&')
+    }
+
+    syncs.push({
+      type: 'iframe',
+      url: `https://${SYNC_ENDPOINT}/cs${queryStr}`
+    });
     return syncs;
   },
 
diff --git a/test/spec/modules/aardvarkBidAdapter_spec.js b/test/spec/modules/aardvarkBidAdapter_spec.js
index b8d147644f9..324607f825e 100644
--- a/test/spec/modules/aardvarkBidAdapter_spec.js
+++ b/test/spec/modules/aardvarkBidAdapter_spec.js
@@ -229,6 +229,54 @@ describe('aardvarkAdapterTest', function () {
     });
   });
 
+  describe('CCPA conformity', function () {
+    const bidRequests = [{
+      bidder: 'aardvark',
+      params: {
+        ai: 'xiby',
+        sc: 'TdAx',
+      },
+      adUnitCode: 'aaa',
+      transactionId: '1b8389fe-615c-482d-9f1a-177fb8f7d5b0',
+      sizes: [300, 250],
+      bidId: '1abgs362e0x48a8',
+      bidderRequestId: '70deaff71c281d',
+      auctionId: '5c66da22-426a-4bac-b153-77360bef5337'
+    }];
+
+    it('should transmit us_privacy data', function () {
+      const usp = '1NY-';
+      const bidderRequest = {
+        gdprConsent: {
+          consentString: 'awefasdfwefasdfasd',
+          gdprApplies: true
+        },
+        refererInfo: {
+          referer: 'http://example.com'
+        },
+        uspConsent: usp
+      };
+      const requests = spec.buildRequests(bidRequests, bidderRequest);
+      expect(requests.length).to.equal(1);
+      expect(requests[0].data.gdpr).to.equal(true);
+      expect(requests[0].data.consent).to.equal('awefasdfwefasdfasd');
+      expect(requests[0].data.us_privacy).to.equal(usp);
+    });
+
+    it('should not send us_privacy', function () {
+      const bidderRequest = {
+        refererInfo: {
+          referer: 'http://example.com'
+        }
+      };
+      const requests = spec.buildRequests(bidRequests, bidderRequest);
+      expect(requests.length).to.equal(1);
+      expect(requests[0].data.gdpr).to.be.undefined;
+      expect(requests[0].data.consent).to.be.undefined;
+      expect(requests[0].data.us_privacy).to.be.undefined;
+    });
+  });
+
   describe('interpretResponse', function () {
     it('should handle bid responses', function () {
       const serverResponse = {
@@ -343,6 +391,15 @@ describe('aardvarkAdapterTest', function () {
       expect(syncs[0].type).to.equal('iframe');
       expect(syncs[0].url).to.equal('https://sync.rtk.io/cs?g=1&c=BOEFEAyOEFEAyAHABDENAI4AAAB9vABAASA');
     });
+
+    it('should produce sync url with ccpa params', function () {
+      resetUserSync();
+
+      const syncs = spec.getUserSyncs(syncOptions, null, {}, '1YYN');
+      expect(syncs.length).to.equal(1);
+      expect(syncs[0].type).to.equal('iframe');
+      expect(syncs[0].url).to.equal('https://sync.rtk.io/cs?us_privacy=1YYN');
+    });
   });
 
   describe('reading window.top properties', function () {