diff --git a/src/Microsoft.Identity.Abstractions/PublicAPI/net462/PublicAPI.Unshipped.txt b/src/Microsoft.Identity.Abstractions/PublicAPI/net462/PublicAPI.Unshipped.txt
index 7dc5c58..bf40861 100644
--- a/src/Microsoft.Identity.Abstractions/PublicAPI/net462/PublicAPI.Unshipped.txt
+++ b/src/Microsoft.Identity.Abstractions/PublicAPI/net462/PublicAPI.Unshipped.txt
@@ -1 +1,3 @@
 #nullable enable
+Microsoft.Identity.Abstractions.AcquireTokenOptions.FmiPath.get -> string?
+Microsoft.Identity.Abstractions.AcquireTokenOptions.FmiPath.set -> void
\ No newline at end of file
diff --git a/src/Microsoft.Identity.Abstractions/PublicAPI/net8.0/PublicAPI.Unshipped.txt b/src/Microsoft.Identity.Abstractions/PublicAPI/net8.0/PublicAPI.Unshipped.txt
index 7dc5c58..bf40861 100644
--- a/src/Microsoft.Identity.Abstractions/PublicAPI/net8.0/PublicAPI.Unshipped.txt
+++ b/src/Microsoft.Identity.Abstractions/PublicAPI/net8.0/PublicAPI.Unshipped.txt
@@ -1 +1,3 @@
 #nullable enable
+Microsoft.Identity.Abstractions.AcquireTokenOptions.FmiPath.get -> string?
+Microsoft.Identity.Abstractions.AcquireTokenOptions.FmiPath.set -> void
\ No newline at end of file
diff --git a/src/Microsoft.Identity.Abstractions/PublicAPI/netstandard2.0/PublicAPI.Unshipped.txt b/src/Microsoft.Identity.Abstractions/PublicAPI/netstandard2.0/PublicAPI.Unshipped.txt
index 7dc5c58..bf40861 100644
--- a/src/Microsoft.Identity.Abstractions/PublicAPI/netstandard2.0/PublicAPI.Unshipped.txt
+++ b/src/Microsoft.Identity.Abstractions/PublicAPI/netstandard2.0/PublicAPI.Unshipped.txt
@@ -1 +1,3 @@
 #nullable enable
+Microsoft.Identity.Abstractions.AcquireTokenOptions.FmiPath.get -> string?
+Microsoft.Identity.Abstractions.AcquireTokenOptions.FmiPath.set -> void
\ No newline at end of file
diff --git a/src/Microsoft.Identity.Abstractions/PublicAPI/netstandard2.1/PublicAPI.Unshipped.txt b/src/Microsoft.Identity.Abstractions/PublicAPI/netstandard2.1/PublicAPI.Unshipped.txt
index 7dc5c58..bf40861 100644
--- a/src/Microsoft.Identity.Abstractions/PublicAPI/netstandard2.1/PublicAPI.Unshipped.txt
+++ b/src/Microsoft.Identity.Abstractions/PublicAPI/netstandard2.1/PublicAPI.Unshipped.txt
@@ -1 +1,3 @@
 #nullable enable
+Microsoft.Identity.Abstractions.AcquireTokenOptions.FmiPath.get -> string?
+Microsoft.Identity.Abstractions.AcquireTokenOptions.FmiPath.set -> void
\ No newline at end of file
diff --git a/src/Microsoft.Identity.Abstractions/TokenAcquisition/AcquireTokenOptions.cs b/src/Microsoft.Identity.Abstractions/TokenAcquisition/AcquireTokenOptions.cs
index 1c7a896..1dfe63d 100644
--- a/src/Microsoft.Identity.Abstractions/TokenAcquisition/AcquireTokenOptions.cs
+++ b/src/Microsoft.Identity.Abstractions/TokenAcquisition/AcquireTokenOptions.cs
@@ -33,6 +33,7 @@ public AcquireTokenOptions(AcquireTokenOptions other)
             ExtraHeadersParameters = other.ExtraHeadersParameters;
             ExtraParameters = other.ExtraParameters;
             ForceRefresh = other.ForceRefresh;
+            FmiPath = other.FmiPath;
             Claims = other.Claims;
             PopPublicKey = other.PopPublicKey;
             PopClaim = other.PopClaim;
@@ -81,6 +82,11 @@ public AcquireTokenOptions(AcquireTokenOptions other)
         /// </summary>
         public string? Claims { get; set; }
 
+        /// <summary>
+        /// Federated Managed Identity (FMI) sub-path.
+        /// </summary>
+        public string? FmiPath { get; set; }
+
         /// <summary>
         /// Specifies if the token request will ignore the access token in the token cache
         /// and will attempt to acquire a new access token.
diff --git a/test/Microsoft.Identity.Abstractions.Tests/AquireTokenOptionsTests.cs b/test/Microsoft.Identity.Abstractions.Tests/AquireTokenOptionsTests.cs
index acdc547..7786dd7 100644
--- a/test/Microsoft.Identity.Abstractions.Tests/AquireTokenOptionsTests.cs
+++ b/test/Microsoft.Identity.Abstractions.Tests/AquireTokenOptionsTests.cs
@@ -67,5 +67,31 @@ public void ManagedIdentityUserAssigned()
             Assert.NotNull(acquireTokenOptions.ManagedIdentity);
             Assert.Equal(managedIdentityOptions.UserAssignedClientId, acquireTokenOptions.ManagedIdentity.UserAssignedClientId);
         }
+
+        [Fact]
+        public void FmiPathTest()
+        {
+            // App token from a Federated Managed Identity (FMI).
+            // -------------------------------------------------
+            /*
+            // <fmipath_json>
+            {
+                "AquireTokenOptions": {
+                    "FmiPath": "/example.org/service/my-service"
+                }
+            }
+            // </fmipath_json>
+            */
+
+            // <fmipath_csharp>
+            AcquireTokenOptions acquireTokenOptions = new AcquireTokenOptions
+            {
+                FmiPath = "/example.org/service/my-service"
+            };
+            // </fmipath_csharp>
+
+            Assert.NotNull(acquireTokenOptions.FmiPath);
+            Assert.Equal("/example.org/service/my-service", acquireTokenOptions.FmiPath);
+        }
     }
 }
diff --git a/test/Microsoft.Identity.Abstractions.Tests/CredentialDescriptionTest.cs b/test/Microsoft.Identity.Abstractions.Tests/CredentialDescriptionTest.cs
index 64bf786..0f1e71a 100644
--- a/test/Microsoft.Identity.Abstractions.Tests/CredentialDescriptionTest.cs
+++ b/test/Microsoft.Identity.Abstractions.Tests/CredentialDescriptionTest.cs
@@ -203,7 +203,7 @@ public void Secret()
         [Fact]
         public void SignedAssertionFromMSI()
         {
-            // Signed assertion from Managed identity federation
+            // Signed assertion from Federation Identity Credential (Managed Identity)
             // -------------------------------------------------
             // https://learn.microsoft.com/azure/active-directory/develop/workload-identity-federation
             /*
diff --git a/test/Microsoft.Identity.Abstractions.Tests/DownstreamApiTests.cs b/test/Microsoft.Identity.Abstractions.Tests/DownstreamApiTests.cs
index d4fb812..1671f1c 100644
--- a/test/Microsoft.Identity.Abstractions.Tests/DownstreamApiTests.cs
+++ b/test/Microsoft.Identity.Abstractions.Tests/DownstreamApiTests.cs
@@ -33,6 +33,7 @@ public void CloneClonesAllProperties()
                     ExtraHeadersParameters = new Dictionary<string, string> { { "slice", "test" } },
                     ExtraQueryParameters = new Dictionary<string, string> { { "slice", "test" } },
                     ExtraParameters = new Dictionary<string, object> { { "param1", "value1" }, { "param2", "value2" } },
+                    FmiPath = "fmiPath",
                     ForceRefresh = true,
                     LongRunningWebApiSessionKey = AcquireTokenOptions.LongRunningWebApiSessionKeyAuto,
                     ManagedIdentity = new ManagedIdentityOptions(),
@@ -83,6 +84,7 @@ public void CloneClonesAllProperties()
             Assert.Equal(downstreamApiOptions.AcquireTokenOptions.ExtraHeadersParameters, downstreamApiClone.AcquireTokenOptions.ExtraHeadersParameters);
             Assert.Equal(downstreamApiOptions.AcquireTokenOptions.ExtraQueryParameters, downstreamApiClone.AcquireTokenOptions.ExtraQueryParameters);
             Assert.Equal(downstreamApiOptions.AcquireTokenOptions.ExtraParameters, downstreamApiClone.AcquireTokenOptions.ExtraParameters);
+            Assert.Equal(downstreamApiOptions.AcquireTokenOptions.FmiPath, downstreamApiClone.AcquireTokenOptions.FmiPath);
             Assert.Equal(downstreamApiOptions.AcquireTokenOptions.ForceRefresh, downstreamApiClone.AcquireTokenOptions.ForceRefresh);
             Assert.Equal(downstreamApiOptions.AcquireTokenOptions.LongRunningWebApiSessionKey, downstreamApiClone.AcquireTokenOptions.LongRunningWebApiSessionKey);
             Assert.Equal(downstreamApiOptions.AcquireTokenOptions.ManagedIdentity.UserAssignedClientId, downstreamApiClone.AcquireTokenOptions.ManagedIdentity?.UserAssignedClientId);
@@ -95,7 +97,7 @@ public void CloneClonesAllProperties()
 
             // If this fails, think of also adding a line to test the new property
             Assert.Equal(12, typeof(DownstreamApiOptions).GetProperties().Length);
-            Assert.Equal(14, typeof(AcquireTokenOptions).GetProperties().Length);
+            Assert.Equal(15, typeof(AcquireTokenOptions).GetProperties().Length);
 
             DownstreamApiOptionsReadOnlyHttpMethod options = new DownstreamApiOptionsReadOnlyHttpMethod(downstreamApiOptions, HttpMethod.Delete.ToString());
             Assert.Equal(HttpMethod.Delete.ToString(), options.HttpMethod);