diff --git a/src/libraries/System.Data.Common/tests/System/Data/DataSetTest.cs b/src/libraries/System.Data.Common/tests/System/Data/DataSetTest.cs
index 50630ae41596a4..f447a3d9ee22fa 100644
--- a/src/libraries/System.Data.Common/tests/System/Data/DataSetTest.cs
+++ b/src/libraries/System.Data.Common/tests/System/Data/DataSetTest.cs
@@ -365,7 +365,6 @@ public void IgnoreColumnEmptyNamespace()
         }
 
         [ConditionalFact(typeof(PlatformDetection), nameof(PlatformDetection.DataSetXmlSerializationIsSupported))]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/134954", typeof(PlatformDetection), nameof(PlatformDetection.IsWasi), nameof(PlatformDetection.IsReadyToRunCompiled))]
         public void SerializeDataSet()
         {
             // see GetReady() for current culture
@@ -386,7 +385,6 @@ public void SerializeDataSet()
         }
 
         [ConditionalFact(typeof(PlatformDetection), nameof(PlatformDetection.DataSetXmlSerializationIsSupported))]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/134954", typeof(PlatformDetection), nameof(PlatformDetection.IsWasi), nameof(PlatformDetection.IsReadyToRunCompiled))]
         public void SerializeDataSet2()
         {
             DataSet quota = new DataSet("Quota");
@@ -478,7 +476,6 @@ public void SerializeDataSet3()
         }
 
         [ConditionalFact(typeof(PlatformDetection), nameof(PlatformDetection.DataSetXmlSerializationIsSupported))]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/134954", typeof(PlatformDetection), nameof(PlatformDetection.IsWasi), nameof(PlatformDetection.IsReadyToRunCompiled))]
         public void DeserializeDataSet()
         {
             string xml = @"<DataSet>
@@ -1359,7 +1356,6 @@ public void WriteXmlModeSchema1()
         }
 
         [ConditionalFact(typeof(PlatformDetection), nameof(PlatformDetection.DataSetXmlSerializationIsSupported))]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/134954", typeof(PlatformDetection), nameof(PlatformDetection.IsWasi), nameof(PlatformDetection.IsReadyToRunCompiled))]
         public void DeserializeModifiedDataSet()
         {
             // Serialization begins
diff --git a/src/libraries/System.Data.Common/tests/System/Data/RestrictedTypeHandlingTests.cs b/src/libraries/System.Data.Common/tests/System/Data/RestrictedTypeHandlingTests.cs
index 251726f2a25703..501edfa65ffdef 100644
--- a/src/libraries/System.Data.Common/tests/System/Data/RestrictedTypeHandlingTests.cs
+++ b/src/libraries/System.Data.Common/tests/System/Data/RestrictedTypeHandlingTests.cs
@@ -123,7 +123,6 @@ public static IEnumerable<object[]> ForbiddenTypes()
         }
 
         [ConditionalTheory(typeof(PlatformDetection), nameof(PlatformDetection.DataSetXmlSerializationIsSupported))]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/134954", typeof(PlatformDetection), nameof(PlatformDetection.IsWasi), nameof(PlatformDetection.IsReadyToRunCompiled))]
         [MemberData(nameof(AllowedTypes))]
         public void DataTable_ReadXml_AllowsKnownTypes(Type type)
         {
@@ -147,7 +146,6 @@ public void DataTable_ReadXml_AllowsKnownTypes(Type type)
         }
 
         [ConditionalTheory(typeof(PlatformDetection), nameof(PlatformDetection.DataSetXmlSerializationIsSupported))]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/134954", typeof(PlatformDetection), nameof(PlatformDetection.IsWasi), nameof(PlatformDetection.IsReadyToRunCompiled))]
         [MemberData(nameof(ForbiddenTypes))]
         public void DataTable_ReadXml_ForbidsUnknownTypes(Type type)
         {
@@ -207,7 +205,6 @@ public void DataTable_ReadXmlSchema_AllowsUnknownTypes(Type type)
         }
 
         [ConditionalFact(typeof(PlatformDetection), nameof(PlatformDetection.DataSetXmlSerializationIsSupported))]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/134954", typeof(PlatformDetection), nameof(PlatformDetection.IsWasi), nameof(PlatformDetection.IsReadyToRunCompiled))]
         public void DataTable_HonorsGloballyDefinedAllowList()
         {
             // Arrange
@@ -299,7 +296,6 @@ public void DataTable_HonorsGloballyDefinedAllowListForSqlTypes()
         }
 
         [ConditionalFact(typeof(PlatformDetection), nameof(PlatformDetection.DataSetXmlSerializationIsSupported))]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/134954", typeof(PlatformDetection), nameof(PlatformDetection.IsWasi), nameof(PlatformDetection.IsReadyToRunCompiled))]
         public void DataColumn_ConvertExpression_SubjectToAllowList_Success()
         {
             // Arrange
@@ -347,7 +343,6 @@ public void DataColumn_ConvertExpression_SubjectToAllowList_Failure()
         }
 
         [ConditionalTheory(typeof(PlatformDetection), nameof(PlatformDetection.DataSetXmlSerializationIsSupported))]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/134954", typeof(PlatformDetection), nameof(PlatformDetection.IsWasi), nameof(PlatformDetection.IsReadyToRunCompiled))]
         [MemberData(nameof(AllowedTypes))]
         public void DataSet_ReadXml_AllowsKnownTypes(Type type)
         {
@@ -378,7 +373,6 @@ public void DataSet_ReadXml_AllowsKnownTypes(Type type)
         }
 
         [ConditionalTheory(typeof(PlatformDetection), nameof(PlatformDetection.DataSetXmlSerializationIsSupported))]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/134954", typeof(PlatformDetection), nameof(PlatformDetection.IsWasi), nameof(PlatformDetection.IsReadyToRunCompiled))]
         [MemberData(nameof(ForbiddenTypes))]
         public void DataSet_ReadXml_ForbidsUnknownTypes(Type type)
         {
diff --git a/src/libraries/System.Diagnostics.DiagnosticSource/tests/TestWithConfigSwitches/ActivityTests.cs b/src/libraries/System.Diagnostics.DiagnosticSource/tests/TestWithConfigSwitches/ActivityTests.cs
index 620897d2791f49..a6b7088222a240 100644
--- a/src/libraries/System.Diagnostics.DiagnosticSource/tests/TestWithConfigSwitches/ActivityTests.cs
+++ b/src/libraries/System.Diagnostics.DiagnosticSource/tests/TestWithConfigSwitches/ActivityTests.cs
@@ -9,7 +9,6 @@ namespace System.Diagnostics.Tests
     public class ActivityTests : IDisposable
     {
         [Fact]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/134954", TestPlatforms.Wasi)]
         public void ActivityIdNonHierarchicalOverflow()
         {
             // find out Activity Id length on this platform in this AppDomain
@@ -81,7 +80,6 @@ public void IdGenerationInternalParent()
         }
 
         [Fact]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/134954", TestPlatforms.Wasi)]
         public void IdFormat_HierarchicalIsDefault()
         {
             Activity activity = new Activity("activity1");
@@ -90,7 +88,6 @@ public void IdFormat_HierarchicalIsDefault()
         }
 
         [Fact]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/134954", TestPlatforms.Wasi)]
         public void IdFormat_ZeroTraceIdAndSpanIdWithHierarchicalFormat()
         {
             Activity activity = new Activity("activity");
diff --git a/src/libraries/System.Runtime.Serialization.Xml/tests/DataContractSerializer.cs b/src/libraries/System.Runtime.Serialization.Xml/tests/DataContractSerializer.cs
index c5713160b9824a..67c91beb1dccef 100644
--- a/src/libraries/System.Runtime.Serialization.Xml/tests/DataContractSerializer.cs
+++ b/src/libraries/System.Runtime.Serialization.Xml/tests/DataContractSerializer.cs
@@ -3695,7 +3695,6 @@ public static void DCS_BasicPerSerializerRoundTripAndCompare_SampleTypes()
     }
 
     [ConditionalFact(typeof(PlatformDetection), nameof(PlatformDetection.DataSetXmlSerializationIsSupported))]
-    [ActiveIssue("https://github.com/dotnet/runtime/issues/134954", typeof(PlatformDetection), nameof(PlatformDetection.IsWasi), nameof(PlatformDetection.IsReadyToRunCompiled))]
     public static void DCS_BasicPerSerializerRoundTripAndCompare_DataSet()
     {
 
diff --git a/src/libraries/System.Runtime/tests/System.Globalization.Calendars.Tests/CalendarTestWithConfigSwitch/CalendarTests.cs b/src/libraries/System.Runtime/tests/System.Globalization.Calendars.Tests/CalendarTestWithConfigSwitch/CalendarTests.cs
index e20522e9aebcb5..804a3a55b270ae 100644
--- a/src/libraries/System.Runtime/tests/System.Globalization.Calendars.Tests/CalendarTestWithConfigSwitch/CalendarTests.cs
+++ b/src/libraries/System.Runtime/tests/System.Globalization.Calendars.Tests/CalendarTestWithConfigSwitch/CalendarTests.cs
@@ -11,7 +11,6 @@ public static class CalendarTests
     {
         [Fact]
         [SkipOnPlatform(TestPlatforms.Android, "Doesn't throw on mobile")]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/134954", TestPlatforms.Wasi)]
         public static void TestJapaneseCalendarDateParsing()
         {
             CultureInfo ciJapanese = new CultureInfo("ja-JP") { DateTimeFormat = { Calendar = new JapaneseCalendar() } };
diff --git a/src/libraries/System.Runtime/tests/System.Runtime.Tests/System/TimeZoneInfoTests.Invariant.cs b/src/libraries/System.Runtime/tests/System.Runtime.Tests/System/TimeZoneInfoTests.Invariant.cs
index bc5e16779e6ab2..0533a081b738b9 100644
--- a/src/libraries/System.Runtime/tests/System.Runtime.Tests/System/TimeZoneInfoTests.Invariant.cs
+++ b/src/libraries/System.Runtime/tests/System.Runtime.Tests/System/TimeZoneInfoTests.Invariant.cs
@@ -9,7 +9,6 @@ namespace System.Tests
     public static partial class TimeZoneInfoTests
     {
         [Fact]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/134954", TestPlatforms.Wasi)]
         public static void IsInvariant()
         {
             Assert.True(GetInvariant(null));
diff --git a/src/libraries/System.Runtime/tests/System.Text.Encoding.Tests/Encoding/Encoding.cs b/src/libraries/System.Runtime/tests/System.Text.Encoding.Tests/Encoding/Encoding.cs
index 32e6be00d3b25a..9ae2917806b661 100644
--- a/src/libraries/System.Runtime/tests/System.Text.Encoding.Tests/Encoding/Encoding.cs
+++ b/src/libraries/System.Runtime/tests/System.Text.Encoding.Tests/Encoding/Encoding.cs
@@ -66,7 +66,6 @@ public static void GetEncodingsTest()
 
         [Theory]
         [MemberData(nameof(Encoding_TestData))]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/134954", TestPlatforms.Wasi)]
         public static void VerifyCodePageAttributes(int codepage, string name, string bodyName, string headerName, bool isBrowserDisplay,
                                             bool isBrowserSave, bool isMailNewsDisplay, bool isMailNewsSave, int windowsCodePage)
         {
@@ -83,7 +82,6 @@ public static void VerifyCodePageAttributes(int codepage, string name, string bo
 
         [Theory]
         [MemberData(nameof(Normalization_TestData))]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/134954", TestPlatforms.Wasi)]
         public static void NormalizationTest(int codepage, bool normalized, bool normalizedC, bool normalizedD, bool normalizedKC, bool normalizedKD)
         {
             Encoding encoding = Encoding.GetEncoding(codepage);
diff --git a/src/libraries/System.Runtime/tests/System.Text.Encoding.Tests/Encoding/EncodingGetEncodingTests.cs b/src/libraries/System.Runtime/tests/System.Text.Encoding.Tests/Encoding/EncodingGetEncodingTests.cs
index ba5e9a5b37fe03..2cff638e8103ff 100644
--- a/src/libraries/System.Runtime/tests/System.Text.Encoding.Tests/Encoding/EncodingGetEncodingTests.cs
+++ b/src/libraries/System.Runtime/tests/System.Text.Encoding.Tests/Encoding/EncodingGetEncodingTests.cs
@@ -92,7 +92,6 @@ public CodePageMapping(string name, int codepage)
         };
 
         [Fact]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/134954", TestPlatforms.Wasi)]
         public void TestEncodingNameAndCopdepageNumber()
         {
             foreach (var map in s_mapping)
@@ -103,7 +102,6 @@ public void TestEncodingNameAndCopdepageNumber()
         }
 
         [Fact]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/134954", TestPlatforms.Wasi)]
         public void GetEncoding_EncodingName()
         {
             using (new ThreadCultureChange(CultureInfo.InvariantCulture))
@@ -123,7 +121,6 @@ public void GetEncoding_EncodingName()
         }
 
         [Fact]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/134954", TestPlatforms.Wasi)]
         public void GetEncoding_WebName()
         {
             foreach (var mapping in s_codePageToWebNameMappings)
diff --git a/src/libraries/System.Runtime/tests/System.Text.Encoding.Tests/UTF7Encoding/UTF7EncodingEncode.cs b/src/libraries/System.Runtime/tests/System.Text.Encoding.Tests/UTF7Encoding/UTF7EncodingEncode.cs
index cd41d08d435b3d..a2e9654be83e06 100644
--- a/src/libraries/System.Runtime/tests/System.Text.Encoding.Tests/UTF7Encoding/UTF7EncodingEncode.cs
+++ b/src/libraries/System.Runtime/tests/System.Text.Encoding.Tests/UTF7Encoding/UTF7EncodingEncode.cs
@@ -60,7 +60,6 @@ public static IEnumerable<object[]> Encode_Basic_TestData()
 
         [Theory]
         [MemberData(nameof(Encode_Basic_TestData))]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/134954", TestPlatforms.Wasi)]
         public void Encode_Basic(string source, int index, int count, byte[] expected)
         {
             Encode_Advanced(true, source, index, count, expected);
diff --git a/src/libraries/System.Runtime/tests/System.Text.Encoding.Tests/UTF7Encoding/UTF7EncodingTests.cs b/src/libraries/System.Runtime/tests/System.Text.Encoding.Tests/UTF7Encoding/UTF7EncodingTests.cs
index 32a958064aa9f0..841dc5e83fb912 100644
--- a/src/libraries/System.Runtime/tests/System.Text.Encoding.Tests/UTF7Encoding/UTF7EncodingTests.cs
+++ b/src/libraries/System.Runtime/tests/System.Text.Encoding.Tests/UTF7Encoding/UTF7EncodingTests.cs
@@ -54,7 +54,6 @@ public static IEnumerable<object[]> Encodings_TestData()
 
         [Theory]
         [MemberData(nameof(Encodings_TestData))]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/134954", TestPlatforms.Wasi)]
         public void WebName(UTF7Encoding encoding)
         {
             Assert.Equal("utf-7", encoding.WebName);
@@ -62,7 +61,6 @@ public void WebName(UTF7Encoding encoding)
 
         [Theory]
         [MemberData(nameof(Encodings_TestData))]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/134954", TestPlatforms.Wasi)]
         public void CodePage(UTF7Encoding encoding)
         {
             Assert.Equal(65000, encoding.CodePage);
@@ -70,7 +68,6 @@ public void CodePage(UTF7Encoding encoding)
 
         [Theory]
         [MemberData(nameof(Encodings_TestData))]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/134954", TestPlatforms.Wasi)]
         public void EncodingName(UTF7Encoding encoding)
         {
             Assert.NotEmpty(encoding.EncodingName); // Unicode (UTF-7) in en-US
@@ -78,7 +75,6 @@ public void EncodingName(UTF7Encoding encoding)
 
         [Theory]
         [MemberData(nameof(Encodings_TestData))]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/134954", TestPlatforms.Wasi)]
         public void IsSingleByte(UTF7Encoding encoding)
         {
             Assert.False(encoding.IsSingleByte);
@@ -86,7 +82,6 @@ public void IsSingleByte(UTF7Encoding encoding)
 
         [Theory]
         [MemberData(nameof(Encodings_TestData))]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/134954", TestPlatforms.Wasi)]
         public void Clone(UTF7Encoding encoding)
         {
             UTF7Encoding clone = (UTF7Encoding)encoding.Clone();
@@ -120,7 +115,6 @@ public static IEnumerable<object[]> Equals_TestData()
 
         [Theory]
         [MemberData(nameof(Equals_TestData))]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/134954", TestPlatforms.Wasi)]
         public void EqualsTest(UTF7Encoding encoding, object value, bool expected)
         {
             Assert.Equal(expected, encoding.Equals(value));