diff --git a/Corona-Warn-App/src/main/java/de/rki/coronawarnapp/ui/viewmodel/SubmissionViewModel.kt b/Corona-Warn-App/src/main/java/de/rki/coronawarnapp/ui/viewmodel/SubmissionViewModel.kt
index c40ebc853875ddd53c2b390da228f5a4a7240ec7..bbdc09f3f33cc7b1193c861c1c881d11e84fcd13 100644
--- a/Corona-Warn-App/src/main/java/de/rki/coronawarnapp/ui/viewmodel/SubmissionViewModel.kt
+++ b/Corona-Warn-App/src/main/java/de/rki/coronawarnapp/ui/viewmodel/SubmissionViewModel.kt
@@ -13,6 +13,7 @@ import de.rki.coronawarnapp.service.submission.QRScanResult
 import de.rki.coronawarnapp.service.submission.SubmissionService
 import de.rki.coronawarnapp.storage.LocalData
 import de.rki.coronawarnapp.storage.SubmissionRepository
+import de.rki.coronawarnapp.storage.interoperability.InteroperabilityRepository
 import de.rki.coronawarnapp.submission.Symptoms
 import de.rki.coronawarnapp.ui.SingleLiveEvent
 import de.rki.coronawarnapp.ui.submission.ApiRequestState
@@ -37,6 +38,7 @@ class SubmissionViewModel : ViewModel() {
 
     private val _submissionState = MutableLiveData(ApiRequestState.IDLE)
     private val _submissionError = MutableLiveData<Event<CwaWebException>>(null)
+    private val interoperabilityRepository = InteroperabilityRepository()
 
     val scanStatus: LiveData<Event<ScanStatus>> = _scanStatus
 
@@ -61,6 +63,7 @@ class SubmissionViewModel : ViewModel() {
 
     val symptomIndication = MutableLiveData<Symptoms.Indication?>()
     val symptomStart = MutableLiveData<Symptoms.StartOf?>()
+    val countryList = MutableLiveData(interoperabilityRepository.countryList)
 
     fun initSymptoms() {
         symptomIndication.postValue(null)
diff --git a/Corona-Warn-App/src/main/res/layout/fragment_submission_positive_other_warning.xml b/Corona-Warn-App/src/main/res/layout/fragment_submission_positive_other_warning.xml
index 527854758de3ae78e2e622aab8549de2ba711afc..555709a0ab052805a88e12fc87c3421347548227 100644
--- a/Corona-Warn-App/src/main/res/layout/fragment_submission_positive_other_warning.xml
+++ b/Corona-Warn-App/src/main/res/layout/fragment_submission_positive_other_warning.xml
@@ -37,6 +37,7 @@
             layout="@layout/include_submission_positive_other_warning"
             android:layout_width="@dimen/match_constraint"
             android:layout_height="@dimen/match_constraint"
+            app:countryData="@{submissionViewModel.countryList}"
             app:layout_constraintBottom_toTopOf="@+id/guideline_action"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintHorizontal_bias="0.0"
diff --git a/Corona-Warn-App/src/main/res/layout/include_submission_positive_other_warning.xml b/Corona-Warn-App/src/main/res/layout/include_submission_positive_other_warning.xml
index 84361b9aaf31a042a98a14d525d8e4771e254038..919bdf8f0abde12f98be68890c1aa60a4edada51 100644
--- a/Corona-Warn-App/src/main/res/layout/include_submission_positive_other_warning.xml
+++ b/Corona-Warn-App/src/main/res/layout/include_submission_positive_other_warning.xml
@@ -1,11 +1,16 @@
 <?xml version="1.0" encoding="utf-8"?>
-<layout xmlns:android="http://schemas.android.com/apk/res/android"
+<layout xmlns:tools="http://schemas.android.com/tools"
+    xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto">
 
     <data>
 
         <import type="de.rki.coronawarnapp.util.formatter.FormatterAccessibilityHelper" />
 
+        <variable
+            name="countryData"
+            type="java.util.List&lt;String&gt;" />
+
     </data>
 
     <ScrollView
@@ -51,6 +56,27 @@
                 app:layout_constraintStart_toStartOf="@id/guideline_start"
                 app:layout_constraintTop_toBottomOf="@+id/submission_positive_other_warning_headline" />
 
+            <TextView
+                android:id="@+id/submission_country_header_description"
+                style="@style/headline6"
+                android:layout_width="@dimen/match_constraint"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="@dimen/spacing_normal"
+                android:text="@{@string/submission_interoperability_list_title}"
+                app:layout_constraintEnd_toEndOf="@id/guideline_end"
+                app:layout_constraintStart_toStartOf="@id/guideline_start"
+                app:layout_constraintTop_toBottomOf="@+id/submission_positive_other_warning_text" />
+
+            <de.rki.coronawarnapp.ui.view.CountryList
+                android:id="@+id/countryList"
+                android:layout_width="@dimen/match_constraint"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="@dimen/spacing_normal"
+                app:layout_constraintEnd_toEndOf="@+id/submission_country_header_description"
+                app:layout_constraintStart_toStartOf="@+id/submission_country_header_description"
+                app:layout_constraintTop_toBottomOf="@+id/submission_country_header_description"
+                app:list="@{countryData}" />
+
             <include
                 android:id="@+id/submission_positive_location_card_16_years"
                 layout="@layout/include_16_years"
@@ -62,7 +88,7 @@
                 app:headline="@{@string/sixteen_title_text}"
                 app:layout_constraintEnd_toStartOf="@+id/guideline_card_end"
                 app:layout_constraintStart_toStartOf="@+id/guideline_card_start"
-                app:layout_constraintTop_toBottomOf="@+id/submission_positive_other_warning_text" />
+                app:layout_constraintTop_toBottomOf="@+id/countryList" />
 
             <include
                 android:id="@+id/submission_positive_other_privacy"
diff --git a/Corona-Warn-App/src/main/res/layout/view_country_list_entry.xml b/Corona-Warn-App/src/main/res/layout/view_country_list_entry.xml
index 7c4f38049524cd359fbf50a83ea80e9db0049980..06461bae2bc856a22b3b68904ba25e699b4e6dcf 100644
--- a/Corona-Warn-App/src/main/res/layout/view_country_list_entry.xml
+++ b/Corona-Warn-App/src/main/res/layout/view_country_list_entry.xml
@@ -17,7 +17,7 @@
 
     <TextView
         android:id="@+id/country_list_entry_label"
-        style="@style/headline6"
+        style="@style/subtitle"
         android:layout_width="0dp"
         android:layout_height="wrap_content"
         android:layout_marginStart="48dp"
diff --git a/Corona-Warn-App/src/main/res/values-de/strings.xml b/Corona-Warn-App/src/main/res/values-de/strings.xml
index 75849d04da4a81b54630b8c42f7d5336b21fbe4b..6ebc03a553ba646f9df0760a7ee03851e79234ca 100644
--- a/Corona-Warn-App/src/main/res/values-de/strings.xml
+++ b/Corona-Warn-App/src/main/res/values-de/strings.xml
@@ -950,7 +950,7 @@
     <!-- XHED: Page headline for the positive result additional warning page-->
     <string name="submission_positive_other_warning_headline">"Helfen Sie mit!"</string>
     <!-- YTXT: Body text for the positive result additional warning page-->
-    <string name="submission_positive_other_warning_body">"Als Nächstes können Sie dafür sorgen, dass das Corona-Warn-System Ihre lokal gespeicherten Zufallscodes der letzten 14 Tage an andere verteilt. So können Sie Ihre Mitmenschen warnen und helfen, die Infektionskette zu unterbrechen.\n\nDa ein Ansteckungsrisiko schon vor dem Erkrankungsbeginn bestehen und im Zeitverlauf variieren kann, bitten wir Sie auch anzugeben, wann eventuelle Corona-Symptome (z. B. Fieber oder Husten) zum ersten Mal bei Ihnen aufgetreten sind. Dadurch kann das Infektionsrisiko von anderen App-Nutzern, die Ihnen begegnet sind, genauer berechnet werden. Die Angabe des Symptombeginns ist optional. Wenn Sie keine Symptome haben oder keine Angaben machen möchten, können Sie „keine Angabe“ auswählen."</string>
+    <string name="submission_positive_other_warning_body">"Als Nächstes können Sie dafür sorgen, dass Ihre Mitmenschen über mögliche Risiko-Begegnungen gewarnt werden. Hierfür können Sie Ihre bislang nur auf Ihrem Smartphone gespeicherten Zufalls-IDs an das von den teilnehmenden Ländern gemeinsam betriebene europäische Serversystem zur Verfügung stellen. Von dort werden die Zufalls-IDs durch die teilnehmenden Länder an die Nutzer der jeweiligen offiziellen Corona-Apps verteilt. Nach dem täglichen Download der Zufalls-IDs werden die Nutzerinnen und Nutzer, mit denen Sie Kontakt hatten, dann gewarnt, sofern eine Risiko-Begegnung stattfand. Es werden nur Zufalls-IDs übertragen. Es werden keine persönlichen Daten wie Ihr Name, Ihre Adresse oder Ihr Aufenthaltsort mitgeteilt."</string>
     <!-- XHED: Title for the privacy card-->
     <string name="submission_positive_other_warning_privacy_title">"Datenschutz"</string>
     <!-- YTXT: Body text for the privacy card-->
@@ -959,6 +959,8 @@
     <string name="submission_positive_other_warning_button">"Einverstanden"</string>
     <!-- XACT: other warning - illustration description, explanation image -->
     <string name="submission_positive_other_illustration_description">"Ein Smartphone übermittelt einen positiven Testbefund verschlüsselt ins System."</string>
+    <!-- XHED: Title for the interop country list-->
+    <string name="submission_interoperability_list_title">"Derzeit nehmen die folgenden Länder an der länderübergreifenden Risiko-Ermittlung teil:"</string>
 
     <!-- Submission Country Selector -->
     <!-- XHED: Page title for the submission country selection page -->
diff --git a/Corona-Warn-App/src/main/res/values/strings.xml b/Corona-Warn-App/src/main/res/values/strings.xml
index 9d41b7e113b916f1a73d612bd24da04abad84ab9..305ed2efed7037c941b612fca38a05e42937b795 100644
--- a/Corona-Warn-App/src/main/res/values/strings.xml
+++ b/Corona-Warn-App/src/main/res/values/strings.xml
@@ -965,6 +965,8 @@
     <string name="submission_positive_other_warning_button">"Accept"</string>
     <!-- XACT: other warning - illustration description, explanation image -->
     <string name="submission_positive_other_illustration_description">"A device transmits an encrypted positive test diagnosis to the system."</string>
+    <!-- XHED: Title for the interop country list-->
+    <string name="submission_interoperability_list_title" />
 
     <!-- Submission Country Selector -->
     <!-- XHED: Page title for the submission country selection page -->
diff --git a/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/diagnosiskeys/download/CountryDataTest.kt b/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/diagnosiskeys/download/CountryDataTest.kt
index b936f533091d7f54d094296e213fcc5155cc30c4..52f54f51b584993994e1ec40df2d8aca36cfd147 100644
--- a/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/diagnosiskeys/download/CountryDataTest.kt
+++ b/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/diagnosiskeys/download/CountryDataTest.kt
@@ -233,7 +233,6 @@ class CountryDataTest : BaseTest() {
             createCachedKey("2222-12-31", "23:00")
         )
 
-
         cd.getMissingHours(cachedHours) shouldBe emptyMap()
         cd.toMissingHours(cachedHours) shouldBe null
     }
diff --git a/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/diagnosiskeys/download/KeyFileDownloaderTest.kt b/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/diagnosiskeys/download/KeyFileDownloaderTest.kt
index cd7e9536e21236cb75c78d0a0f38f154b22a5d49..25746dcf25305d46b8e8e11271198ae5352b94b3 100644
--- a/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/diagnosiskeys/download/KeyFileDownloaderTest.kt
+++ b/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/diagnosiskeys/download/KeyFileDownloaderTest.kt
@@ -170,7 +170,8 @@ class KeyFileDownloaderTest : BaseIOTest() {
     }
 
     private fun mockKeyCacheUpdateComplete(
-        keyInfo: CachedKeyInfo, checksum: String
+        keyInfo: CachedKeyInfo,
+        checksum: String
     ) {
         keyRepoData[keyInfo.id] = keyInfo.copy(
             isDownloadComplete = checksum != null, checksumMD5 = checksum
diff --git a/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/diagnosiskeys/server/DiagnosisKeyApiTest.kt b/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/diagnosiskeys/server/DiagnosisKeyApiTest.kt
index 61255ae4de3b7a565dac633af3ba9ce65525051b..a8ed796f69eb60e567d503d66f02018d6e43a7d2 100644
--- a/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/diagnosiskeys/server/DiagnosisKeyApiTest.kt
+++ b/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/diagnosiskeys/server/DiagnosisKeyApiTest.kt
@@ -124,5 +124,4 @@ class DiagnosisKeyApiTest : BaseIOTest() {
         request.method shouldBe "GET"
         request.path shouldBe "/version/v1/diagnosis-keys/country/DE/date/2020-09-09/hour/23"
     }
-
 }
diff --git a/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/diagnosiskeys/server/DiagnosisKeyServerTest.kt b/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/diagnosiskeys/server/DiagnosisKeyServerTest.kt
index 16edc6a932c04f4204830a92f05974db2f54bf21..bce772243e8ac7803287c082889e2d06c06c527c 100644
--- a/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/diagnosiskeys/server/DiagnosisKeyServerTest.kt
+++ b/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/diagnosiskeys/server/DiagnosisKeyServerTest.kt
@@ -96,7 +96,6 @@ class DiagnosisKeyServerTest : BaseIOTest() {
         coVerify { api.getHourIndex("DE", "2000-01-01") }
     }
 
-
     @Test
     fun `download key files for day`() {
         val downloadServer = createDownloadServer()
diff --git a/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/diagnosiskeys/storage/KeyCacheRepositoryTest.kt b/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/diagnosiskeys/storage/KeyCacheRepositoryTest.kt
index a45a79487ab097347213f338325bfda2530dd072..95fe5150464b5906f94d5555fd0ec10785712d56 100644
--- a/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/diagnosiskeys/storage/KeyCacheRepositoryTest.kt
+++ b/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/diagnosiskeys/storage/KeyCacheRepositoryTest.kt
@@ -203,5 +203,4 @@ class KeyCacheRepositoryTest : BaseIOTest() {
             keyFilePath.exists() shouldBe false
         }
     }
-
 }
diff --git a/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/service/applicationconfiguration/ApplicationConfigurationServiceTest.kt b/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/service/applicationconfiguration/ApplicationConfigurationServiceTest.kt
index eca0ea6cbc9c35e535253af2f042b4b8dd779658..a7fe73eef9a0051ef30f6e1efcb90c52941920ad 100644
--- a/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/service/applicationconfiguration/ApplicationConfigurationServiceTest.kt
+++ b/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/service/applicationconfiguration/ApplicationConfigurationServiceTest.kt
@@ -47,7 +47,6 @@ class ApplicationConfigurationServiceTest : BaseTest() {
             every { AppInjector.component } returns this@apply
         }
 
-
         runBlocking {
             ApplicationConfigurationService.asyncRetrieveApplicationConfiguration()
             verify(exactly = 1) { appConfigBuilder.addAllSupportedCountries(any()) }
diff --git a/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/transaction/RetrieveDiagnosisKeysTransactionTest.kt b/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/transaction/RetrieveDiagnosisKeysTransactionTest.kt
index 930461f6e870ce0033ab76e79a5000d133783e51..3140d9c8667f3fdbe70ed81fe652cbf873fdc779 100644
--- a/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/transaction/RetrieveDiagnosisKeysTransactionTest.kt
+++ b/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/transaction/RetrieveDiagnosisKeysTransactionTest.kt
@@ -23,7 +23,6 @@ import kotlinx.coroutines.runBlocking
 import org.junit.jupiter.api.AfterEach
 import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.Test
-import org.joda.time.Instant
 import org.joda.time.LocalDate
 import java.io.File
 import java.nio.file.Paths
diff --git a/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/util/HashExtensionsTest.kt b/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/util/HashExtensionsTest.kt
index 186d2973e59a9182febc4a7d656b0ad5f717e5a2..ad8d1c58d286307a36d310eff65450b97042a18e 100644
--- a/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/util/HashExtensionsTest.kt
+++ b/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/util/HashExtensionsTest.kt
@@ -50,9 +50,9 @@ class HashExtensionsTest : BaseIOTest() {
         val testFile = File(testDir, fileName)
         try {
             testFile.printWriter().use { out ->
-                out.println("This is a test")
+                out.print("This is a test")
             }
-            testFile.hashToMD5() shouldBe "ff22941336956098ae9a564289d1bf1b"
+            testFile.hashToMD5() shouldBe "ce114e4501d2f4e2dcea3e17b546f339"
         } finally {
             testFile.delete()
         }
diff --git a/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/util/database/CommonConvertersTest.kt b/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/util/database/CommonConvertersTest.kt
index baddf45d799ea2f4ac86e26f6d0eb5bb48894bca..16c04ae999000000e315538ba9cda4234f5b733d 100644
--- a/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/util/database/CommonConvertersTest.kt
+++ b/Corona-Warn-App/src/test/java/de/rki/coronawarnapp/util/database/CommonConvertersTest.kt
@@ -52,7 +52,6 @@ class CommonConvertersTest : BaseTest() {
         }
     }
 
-
     @Test
     fun `path conversion`() {
         converters.apply {
diff --git a/Corona-Warn-App/src/test/java/testhelpers/extensions/InstantExecutorExtension.kt b/Corona-Warn-App/src/test/java/testhelpers/extensions/InstantExecutorExtension.kt
index 5f9ab64108ff01f43cb7363786a094454ac1f02f..60264bc21bce2d77fb691d9096f781a14bc2bbc4 100644
--- a/Corona-Warn-App/src/test/java/testhelpers/extensions/InstantExecutorExtension.kt
+++ b/Corona-Warn-App/src/test/java/testhelpers/extensions/InstantExecutorExtension.kt
@@ -21,5 +21,4 @@ class InstantExecutorExtension : BeforeEachCallback, AfterEachCallback {
     override fun afterEach(context: ExtensionContext?) {
         ArchTaskExecutor.getInstance().setDelegate(null)
     }
-
 }