diff --git a/eng/pipelines/dotnet-sqlclient-ci-core.yml b/eng/pipelines/dotnet-sqlclient-ci-core.yml
index 2f42bf6e41..36bb1dda1f 100644
--- a/eng/pipelines/dotnet-sqlclient-ci-core.yml
+++ b/eng/pipelines/dotnet-sqlclient-ci-core.yml
@@ -167,6 +167,8 @@ stages:
       buildConfiguration: ${{ parameters.buildConfiguration }}
       debug: ${{ parameters.debug }}
       dotnetVerbosity: ${{ parameters.dotnetVerbosity }}
+      referenceType: ${{ parameters.referenceType }}
+      isInternalBuild: ${{ parameters.isInternalBuild }}
 
   # Build the Abstractions package, and publish it to the pipeline artifacts
   # under the given artifact name.
diff --git a/eng/pipelines/jobs/pack-logging-package-ci-job.yml b/eng/pipelines/jobs/pack-logging-package-ci-job.yml
index 0f0faa1859..5affd5087b 100644
--- a/eng/pipelines/jobs/pack-logging-package-ci-job.yml
+++ b/eng/pipelines/jobs/pack-logging-package-ci-job.yml
@@ -50,6 +50,21 @@ parameters:
     - detailed
     - diagnostic
 
+  # The C# project reference type to use when building and packing the packages.
+  - name: referenceType
+    type: string
+    default: Project
+    values:
+      # Reference sibling packages as NuGet packages.
+      - Package
+      # Reference sibling packages as C# projects.
+      - Project
+
+  # True when building on the internal ADO.Net project.
+  - name: isInternalBuild
+    type: boolean
+    default: false
+
 jobs:
 
   - job: pack_logging_package_job
@@ -95,20 +110,37 @@ jobs:
         parameters:
           debug: ${{ parameters.debug }}
 
+      # Download the assembly signing key for internal Package-mode builds.
+      - ${{ if and(eq(parameters.isInternalBuild, true), ne(parameters.referenceType, 'Project')) }}:
+        - template: /eng/pipelines/common/steps/download-assembly-signing-key.yml@self
+
       # Create the NuGet packages.
-      - task: DotNetCoreCLI@2
-        displayName: Create NuGet Package
-        inputs:
-          command: pack
-          packagesToPack: $(project)
-          configurationToPack: ${{ parameters.buildConfiguration }}
-          packDirectory: $(dotnetPackagesDir)
-          verbosityToPack: ${{ parameters.dotnetVerbosity }}
-          # BuildNumber supplies the revision component of FileVersion
-          # (Major.Minor.Patch.Revision).  Without it, FileVersionBuildNumber
-          # defaults to 0 and the assembly is stamped Major.Minor.Patch.0,
-          # inconsistent with the MDS/AKV packages that pass it.
-          buildProperties: SqlClientPackageVersion=${{ parameters.packageVersion }};BuildNumber=$(Build.BuildNumber)
+      #
+      # BuildNumber supplies the revision component of FileVersion
+      # (Major.Minor.Patch.Revision).  Without it, FileVersionBuildNumber
+      # defaults to 0 and the assembly is stamped Major.Minor.Patch.0,
+      # inconsistent with the MDS/AKV packages that pass it.
+      - ${{ if and(eq(parameters.isInternalBuild, true), ne(parameters.referenceType, 'Project')) }}:
+        - task: DotNetCoreCLI@2
+          displayName: Create NuGet Package
+          inputs:
+            command: pack
+            packagesToPack: $(project)
+            configurationToPack: ${{ parameters.buildConfiguration }}
+            packDirectory: $(dotnetPackagesDir)
+            verbosityToPack: ${{ parameters.dotnetVerbosity }}
+            buildProperties: SqlClientPackageVersion=${{ parameters.packageVersion }};BuildNumber=$(Build.BuildNumber);SigningKeyPath=$(driverKeyFile.secureFilePath)
+
+      - ${{ else }}:
+        - task: DotNetCoreCLI@2
+          displayName: Create NuGet Package
+          inputs:
+            command: pack
+            packagesToPack: $(project)
+            configurationToPack: ${{ parameters.buildConfiguration }}
+            packDirectory: $(dotnetPackagesDir)
+            verbosityToPack: ${{ parameters.dotnetVerbosity }}
+            buildProperties: SqlClientPackageVersion=${{ parameters.packageVersion }};BuildNumber=$(Build.BuildNumber)
 
       # Publish the NuGet packages as a named pipeline artifact.
       - task: PublishPipelineArtifact@1
diff --git a/eng/pipelines/stages/build-logging-package-ci-stage.yml b/eng/pipelines/stages/build-logging-package-ci-stage.yml
index b9d5feb082..588fb3a17b 100644
--- a/eng/pipelines/stages/build-logging-package-ci-stage.yml
+++ b/eng/pipelines/stages/build-logging-package-ci-stage.yml
@@ -59,6 +59,21 @@ parameters:
     - detailed
     - diagnostic
 
+  # The C# project reference type to use when building and packing the packages.
+  - name: referenceType
+    type: string
+    default: Project
+    values:
+      # Reference sibling packages as NuGet packages.
+      - Package
+      # Reference sibling packages as C# projects.
+      - Project
+
+  # True when building on the internal ADO.Net project.
+  - name: isInternalBuild
+    type: boolean
+    default: false
+
 stages:
 
   - stage: build_logging_package_stage
@@ -90,3 +105,5 @@ stages:
           buildConfiguration: ${{ parameters.buildConfiguration }}
           debug: ${{ parameters.debug }}
           dotnetVerbosity: ${{ parameters.dotnetVerbosity }}
+          referenceType: ${{ parameters.referenceType }}
+          isInternalBuild: ${{ parameters.isInternalBuild }}