diff --git a/modules/rtbhouseBidAdapter.js b/modules/rtbhouseBidAdapter.js
index 5f94ec3dea4..cfad8fce966 100644
--- a/modules/rtbhouseBidAdapter.js
+++ b/modules/rtbhouseBidAdapter.js
@@ -1,4 +1,4 @@
-import {deepAccess, isArray, logError, logInfo, mergeDeep} from '../src/utils.js';
+import {deepAccess, deepClone, isArray, logError, logInfo, mergeDeep, isEmpty, isPlainObject, isNumber, isStr} from '../src/utils.js';
 import {getOrigin} from '../libraries/getOrigin/index.js';
 import {BANNER, NATIVE} from '../src/mediaTypes.js';
 import {registerBidder} from '../src/adapters/bidderFactory.js';
@@ -18,6 +18,12 @@ const SUPPORTED_MEDIA_TYPES = [BANNER, NATIVE];
 const TTL = 55;
 const GVLID = 16;
 
+const DSA_ATTRIBUTES = [
+  { name: 'dsarequired', 'min': 0, 'max': 3 },
+  { name: 'pubrender', 'min': 0, 'max': 2 },
+  { name: 'datatopub', 'min': 0, 'max': 2 }
+];
+
 // Codes defined by OpenRTB Native Ads 1.1 specification
 export const OPENRTB = {
   NATIVE: {
@@ -95,6 +101,17 @@ export const spec = {
       }
     });
 
+    const dsa = deepAccess(ortb2Params, 'regs.ext.dsa');
+    if (validateDSA(dsa)) {
+      mergeDeep(request, {
+        regs: {
+          ext: {
+            dsa
+          }
+        }
+      });
+    }
+
     let computedEndpointUrl = ENDPOINT_URL;
 
     if (bidderRequest.fledgeEnabled) {
@@ -133,7 +150,13 @@ export const spec = {
       } else {
         interpretedBid = interpretBannerBid(serverBid);
       }
-      if (serverBid.ext) interpretedBid.ext = serverBid.ext;
+
+      if (serverBid.ext) {
+        interpretedBid.ext = deepClone(serverBid.ext);
+        if (serverBid.ext.dsa) {
+          interpretedBid.meta = Object.assign({}, interpretedBid.meta, { dsa: serverBid.ext.dsa });
+        }
+      }
 
       bids.push(interpretedBid);
     });
@@ -518,3 +541,27 @@ function interpretNativeAd(adm) {
   });
   return result;
 }
+
+/**
+ * https://github.com/InteractiveAdvertisingBureau/openrtb/blob/main/extensions/community_extensions/dsa_transparency.md
+ *
+ * @param {object} dsa
+ * @returns {boolean} whether dsa object contains valid attributes values
+ */
+function validateDSA(dsa) {
+  if (isEmpty(dsa) || !isPlainObject(dsa)) return false;
+
+  return DSA_ATTRIBUTES.reduce((prev, attr) => {
+    const dsaEntry = dsa[attr.name];
+    return prev && (
+      !dsa.hasOwnProperty(attr.name) ||
+      (isNumber(dsaEntry) && dsaEntry >= attr.min && dsaEntry <= attr.max)
+    )
+  }, true) &&
+    (!dsa.hasOwnProperty('transparency') ||
+      (isArray(dsa.transparency) && dsa.transparency.every(
+        v => isPlainObject(v) && isStr(v.domain) && v.domain && isArray(v.dsaparams) &&
+          v.dsaparams.every(x => isNumber(x))
+      ))
+    )
+}
diff --git a/test/spec/modules/rtbhouseBidAdapter_spec.js b/test/spec/modules/rtbhouseBidAdapter_spec.js
index 0b944dcb077..77b746b9b69 100644
--- a/test/spec/modules/rtbhouseBidAdapter_spec.js
+++ b/test/spec/modules/rtbhouseBidAdapter_spec.js
@@ -2,6 +2,7 @@ import { expect } from 'chai';
 import { OPENRTB, spec } from 'modules/rtbhouseBidAdapter.js';
 import { newBidder } from 'src/adapters/bidderFactory.js';
 import { config } from 'src/config.js';
+import { mergeDeep } from '../../../src/utils';
 
 describe('RTBHouseAdapter', () => {
   const adapter = newBidder(spec);
@@ -304,6 +305,152 @@ describe('RTBHouseAdapter', () => {
       expect(data.user).to.nested.include({'ext.data': 'some user data'});
     });
 
+    context('DSA', () => {
+      const validDSAObject = {
+        'dsarequired': 3,
+        'pubrender': 0,
+        'datatopub': 2,
+        'transparency': [
+          {
+            'domain': 'platform1domain.com',
+            'dsaparams': [1]
+          },
+          {
+            'domain': 'SSP2domain.com',
+            'dsaparams': [1, 2]
+          }
+        ]
+      };
+      const invalidDSAObjects = [
+        -1,
+        0,
+        '',
+        'x',
+        true,
+        [],
+        [1],
+        {},
+        {
+          'dsarequired': -1
+        },
+        {
+          'pubrender': -1
+        },
+        {
+          'datatopub': -1
+        },
+        {
+          'dsarequired': 4
+        },
+        {
+          'pubrender': 3
+        },
+        {
+          'datatopub': 3
+        },
+        {
+          'dsarequired': '1'
+        },
+        {
+          'pubrender': '1'
+        },
+        {
+          'datatopub': '1'
+        },
+        {
+          'transparency': '1'
+        },
+        {
+          'transparency': 2
+        },
+        {
+          'transparency': [
+            1, 2
+          ]
+        },
+        {
+          'transparency': [
+            {
+              domain: '',
+              dsaparams: []
+            }
+          ]
+        },
+        {
+          'transparency': [
+            {
+              domain: 'x',
+              dsaparams: null
+            }
+          ]
+        },
+        {
+          'transparency': [
+            {
+              domain: 'x',
+              dsaparams: [1, '2']
+            }
+          ]
+        },
+      ];
+      let bidRequest;
+
+      beforeEach(() => {
+        bidRequest = Object.assign([], bidRequests);
+      });
+
+      it('should add dsa information to the request via bidderRequest.ortb2.regs.ext.dsa', function () {
+        const localBidderRequest = {
+          ...bidderRequest,
+          ortb2: {
+            regs: {
+              ext: {
+                dsa: validDSAObject
+              }
+            }
+          }
+        };
+
+        const request = spec.buildRequests(bidRequest, localBidderRequest);
+        const data = JSON.parse(request.data);
+
+        expect(data).to.have.nested.property('regs.ext.dsa');
+        expect(data.regs.ext.dsa.dsarequired).to.equal(3);
+        expect(data.regs.ext.dsa.pubrender).to.equal(0);
+        expect(data.regs.ext.dsa.datatopub).to.equal(2);
+        expect(data.regs.ext.dsa.transparency).to.deep.equal([
+          {
+            'domain': 'platform1domain.com',
+            'dsaparams': [1]
+          },
+          {
+            'domain': 'SSP2domain.com',
+            'dsaparams': [1, 2]
+          }
+        ]);
+      });
+
+      invalidDSAObjects.forEach((invalidDSA, index) => {
+        it(`should not add dsa information to the request via bidderRequest.ortb2.regs.ext.dsa; test# ${index}`, function () {
+          const localBidderRequest = {
+            ...bidderRequest,
+            ortb2: {
+              regs: {
+                ext: {
+                  dsa: invalidDSA
+                }
+              }
+            }
+          };
+
+          const request = spec.buildRequests(bidRequest, localBidderRequest);
+          const data = JSON.parse(request.data);
+
+          expect(data).to.not.have.nested.property('regs.ext.dsa');
+        });
+      });
+    });
+
     context('FLEDGE', function() {
       afterEach(function () {
         config.resetConfig();
@@ -563,17 +710,20 @@ describe('RTBHouseAdapter', () => {
   });
 
   describe('interpretResponse', function () {
-    let response = [{
-      'id': 'bidder_imp_identifier',
-      'impid': '552b8922e28f27',
-      'price': 0.5,
-      'adid': 'Ad_Identifier',
-      'adm': '<!-- test creative -->',
-      'adomain': ['rtbhouse.com'],
-      'cid': 'Ad_Identifier',
-      'w': 300,
-      'h': 250
-    }];
+    let response;
+    beforeEach(() => {
+      response = [{
+        'id': 'bidder_imp_identifier',
+        'impid': '552b8922e28f27',
+        'price': 0.5,
+        'adid': 'Ad_Identifier',
+        'adm': '<!-- test creative -->',
+        'adomain': ['rtbhouse.com'],
+        'cid': 'Ad_Identifier',
+        'w': 300,
+        'h': 250
+      }];
+    });
 
     let fledgeResponse = {
       'id': 'bid-identifier',
@@ -638,6 +788,51 @@ describe('RTBHouseAdapter', () => {
       });
     });
 
+    context('when the response contains DSA object', function () {
+      it('should get correct bid response', function () {
+        const dsa = {
+          'dsa': {
+            'behalf': 'Advertiser',
+            'paid': 'Advertiser',
+            'transparency': [{
+              'domain': 'dsp1domain.com',
+              'dsaparams': [1, 2]
+            }],
+            'adrender': 1
+          }
+        };
+        mergeDeep(response[0], { ext: dsa });
+
+        const expectedResponse = [
+          {
+            'requestId': '552b8922e28f27',
+            'cpm': 0.5,
+            'creativeId': 29681110,
+            'width': 300,
+            'height': 250,
+            'ad': '<!-- test creative -->',
+            'mediaType': 'banner',
+            'currency': 'USD',
+            'ttl': 300,
+            'meta': {
+              'advertiserDomains': ['rtbhouse.com'],
+              ...dsa
+            },
+            'netRevenue': true,
+            ext: { ...dsa }
+          }
+        ];
+        let bidderRequest;
+        let result = spec.interpretResponse({body: response}, {bidderRequest});
+
+        expect(Object.keys(result[0])).to.have.members(Object.keys(expectedResponse[0]));
+        expect(result[0]).to.have.nested.property('meta.dsa');
+        expect(result[0]).to.have.nested.property('ext.dsa');
+        expect(result[0].meta.dsa).to.deep.equal(expectedResponse[0].meta.dsa);
+        expect(result[0].ext.dsa).to.deep.equal(expectedResponse[0].meta.dsa);
+      });
+    });
+
     describe('native', () => {
       const adm = {
         native: {