diff --git a/modules/lemmaBidAdapter.js b/modules/lemmaBidAdapter.js
index 1ad660e5916..5941802f97d 100644
--- a/modules/lemmaBidAdapter.js
+++ b/modules/lemmaBidAdapter.js
@@ -5,10 +5,13 @@ import { BANNER, VIDEO } from '../src/mediaTypes.js';
 var BIDDER_CODE = 'lemma';
 var LOG_WARN_PREFIX = 'LEMMA: ';
 var ENDPOINT = 'https://ads.lemmatechnologies.com/lemma/servad';
+var USER_SYNC = 'https://sync.lemmatechnologies.com/js/usersync.html?';
 var DEFAULT_CURRENCY = 'USD';
 var AUCTION_TYPE = 2;
 var DEFAULT_TMAX = 300;
 var DEFAULT_NET_REVENUE = false;
+var pubId = 0;
+var adunitId = 0;
 
 export var spec = {
 
@@ -57,6 +60,29 @@ export var spec = {
   interpretResponse: (response, request) => {
     return parseRTBResponse(request, response.body);
   },
+  getUserSyncs: (syncOptions, responses, gdprConsent, uspConsent) => {
+    let syncurl = USER_SYNC + 'pid=' + pubId;
+
+    // Attaching GDPR Consent Params in UserSync url
+    if (gdprConsent) {
+      syncurl += '&gdpr=' + (gdprConsent.gdprApplies ? 1 : 0);
+      syncurl += '&gdpr_consent=' + encodeURIComponent(gdprConsent.consentString || '');
+    }
+
+    // CCPA
+    if (uspConsent) {
+      syncurl += '&us_privacy=' + encodeURIComponent(uspConsent);
+    }
+
+    if (syncOptions.iframeEnabled) {
+      return [{
+        type: 'iframe',
+        url: syncurl
+      }];
+    } else {
+      utils.logWarn(LOG_WARN_PREFIX + 'Please enable iframe based user sync.');
+    }
+  },
 };
 
 function _initConf(refererInfo) {
@@ -167,8 +193,8 @@ function _getImpressionArray(request) {
 function endPointURL(request) {
   var params = request && request[0].params ? request[0].params : null;
   if (params) {
-    var pubId = params.pubId ? params.pubId : 0;
-    var adunitId = params.adunitId ? params.adunitId : 0;
+    pubId = params.pubId ? params.pubId : 0;
+    adunitId = params.adunitId ? params.adunitId : 0;
     return ENDPOINT + '?pid=' + pubId + '&aid=' + adunitId;
   }
   return null;
@@ -183,7 +209,7 @@ function _getDomain(url) {
 function _getSiteObject(request, conf) {
   var params = request && request.params ? request.params : null;
   if (params) {
-    var pubId = params.pubId ? params.pubId : '0';
+    pubId = params.pubId ? params.pubId : '0';
     var siteId = params.siteId ? params.siteId : '0';
     var appParams = params.app;
     if (!appParams) {
@@ -204,7 +230,7 @@ function _getSiteObject(request, conf) {
 function _getAppObject(request) {
   var params = request && request.params ? request.params : null;
   if (params) {
-    var pubId = params.pubId ? params.pubId : 0;
+    pubId = params.pubId ? params.pubId : 0;
     var appParams = params.app;
     if (appParams) {
       return {
diff --git a/test/spec/modules/lemmaBidAdapter_spec.js b/test/spec/modules/lemmaBidAdapter_spec.js
index a236ac17d71..a00c25d126c 100644
--- a/test/spec/modules/lemmaBidAdapter_spec.js
+++ b/test/spec/modules/lemmaBidAdapter_spec.js
@@ -331,5 +331,39 @@ describe('lemmaBidAdapter', function() {
         });
       });
     });
+    describe('getUserSyncs', function() {
+      const syncurl_iframe = 'https://sync.lemmatechnologies.com/js/usersync.html?pid=1001';
+      let sandbox;
+      beforeEach(function() {
+        sandbox = sinon.sandbox.create();
+      });
+      afterEach(function() {
+        sandbox.restore();
+      });
+
+      it('execute as per config', function() {
+        expect(spec.getUserSyncs({ iframeEnabled: true }, {}, undefined, undefined)).to.deep.equal([{
+          type: 'iframe', url: syncurl_iframe
+        }]);
+      });
+
+      it('CCPA/USP', function() {
+        expect(spec.getUserSyncs({ iframeEnabled: true }, {}, undefined, '1NYN')).to.deep.equal([{
+          type: 'iframe', url: `${syncurl_iframe}&us_privacy=1NYN`
+        }]);
+      });
+
+      it('GDPR', function() {
+        expect(spec.getUserSyncs({ iframeEnabled: true }, {}, { gdprApplies: true, consentString: 'foo' }, undefined)).to.deep.equal([{
+          type: 'iframe', url: `${syncurl_iframe}&gdpr=1&gdpr_consent=foo`
+        }]);
+        expect(spec.getUserSyncs({ iframeEnabled: true }, {}, { gdprApplies: false, consentString: 'foo' }, undefined)).to.deep.equal([{
+          type: 'iframe', url: `${syncurl_iframe}&gdpr=0&gdpr_consent=foo`
+        }]);
+        expect(spec.getUserSyncs({ iframeEnabled: true }, {}, { gdprApplies: true, consentString: undefined }, undefined)).to.deep.equal([{
+          type: 'iframe', url: `${syncurl_iframe}&gdpr=1&gdpr_consent=`
+        }]);
+      });
+    });
   });
 });