diff --git a/org.omg.sysml.interactive.tests/src/org/omg/sysml/semantics/tests/SysMLSpecializationSpecialTest.java b/org.omg.sysml.interactive.tests/src/org/omg/sysml/semantics/tests/SysMLSpecializationSpecialTest.java
index 947757f7eb..c06e4169c3 100644
--- a/org.omg.sysml.interactive.tests/src/org/omg/sysml/semantics/tests/SysMLSpecializationSpecialTest.java
+++ b/org.omg.sysml.interactive.tests/src/org/omg/sysml/semantics/tests/SysMLSpecializationSpecialTest.java
@@ -1,6 +1,6 @@
 /**
  * SysML 2 Pilot Implementation
- * Copyright (C) 2024-2025 Model Driven Solutions, Inc.
+ * Copyright (C) 2024-2026 Model Driven Solutions, Inc.
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the Eclipse Public License as published by
@@ -30,9 +30,11 @@
 import org.junit.Test;
 import org.omg.sysml.lang.sysml.Element;
 import org.omg.sysml.lang.sysml.ItemDefinition;
+import org.omg.sysml.lang.sysml.OccurrenceDefinition;
 import org.omg.sysml.lang.sysml.OccurrenceUsage;
 import org.omg.sysml.lang.sysml.PortDefinition;
 import org.omg.sysml.lang.sysml.PortUsage;
+import org.omg.sysml.lang.sysml.PortionKind;
 import org.omg.sysml.lang.sysml.StateUsage;
 import org.omg.sysml.lang.sysml.SysMLFactory;
 import org.omg.sysml.lang.sysml.SysMLPackage;
@@ -182,6 +184,58 @@ public void checkFeatureSubobjectSpecialization_PortUsage() {
 		assertTrue(String.format("OccurrenceUsage specializes subobjects instead of %s", getSpecifics(occurrence)), occurrence.specializes((Type)libraryElement));
 	}
 	
+	@Test
+	public void checkOccurrenceUsageTimesliceSpecialization_OccurrenceUsage() {
+		//create and add root package
+		org.omg.sysml.lang.sysml.Package root = SysMLFactory.eINSTANCE.createPackage();
+		getResource().getContents().add(root);
+		
+		//check if library element exists
+		Element libraryElement = SysMLLibraryUtil.getLibraryElement(root, "Occurrences::Occurrence::timeSlices");
+		assertTrue(libraryElement instanceof Type);
+
+		//create owning type
+		Type owner = (Type) SysMLFactory.eINSTANCE.createOccurrenceDefinition();
+		NamespaceUtil.addOwnedMemberTo(root, owner);	
+		
+		//create occurrence usage
+		OccurrenceUsage occurrence = SysMLFactory.eINSTANCE.createOccurrenceUsage();
+		occurrence.setIsReference(true);
+		occurrence.setPortionKind(PortionKind.TIMESLICE);
+		TypeUtil.addOwnedFeatureTo(owner, occurrence);
+		
+		//run transformation, add implicit elements
+		ElementUtil.transformAll(root, true);
+		
+		assertTrue(String.format("OccurrenceUsage specializes timeslices instead of %s", getSpecifics(occurrence)), occurrence.specializes((Type)libraryElement));
+	}
+	
+	@Test
+	public void checkOccurrenceUsageTimesliceSpecialization_PortUsage() {
+		//create and add root package
+		org.omg.sysml.lang.sysml.Package root = SysMLFactory.eINSTANCE.createPackage();
+		getResource().getContents().add(root);
+		
+		//check if library element exists
+		Element libraryElement = SysMLLibraryUtil.getLibraryElement(root, "Occurrences::Occurrence::timeSlices");
+		assertTrue(libraryElement instanceof Type);
+
+		//create owning type
+		Type owner = (Type) SysMLFactory.eINSTANCE.createPortDefinition();
+		NamespaceUtil.addOwnedMemberTo(root, owner);	
+		
+		//create port usage
+		PortUsage port = SysMLFactory.eINSTANCE.createPortUsage();
+		port.setIsReference(true);
+		port.setPortionKind(PortionKind.TIMESLICE);
+		TypeUtil.addOwnedFeatureTo(owner, port);
+		
+		//run transformation, add implicit elements
+		ElementUtil.transformAll(root, true);
+		
+		assertTrue(String.format("PortUsage specializes timeslices instead of %s", getSpecifics(port)), port.specializes((Type)libraryElement));
+	}
+	
 	@Test
 	@Ignore("TBD")
 	public void checkUsageVariationUsageSpecialization() {
diff --git a/org.omg.sysml.logic.bundle/lib/org.omg.sysml.logic-0.62.0-SNAPSHOT.jar b/org.omg.sysml.logic.bundle/lib/org.omg.sysml.logic-0.62.0-SNAPSHOT.jar
index 2b7ec9ef06..3a18753948 100644
Binary files a/org.omg.sysml.logic.bundle/lib/org.omg.sysml.logic-0.62.0-SNAPSHOT.jar and b/org.omg.sysml.logic.bundle/lib/org.omg.sysml.logic-0.62.0-SNAPSHOT.jar differ
diff --git a/org.omg.sysml.logic/src/main/java/org/omg/sysml/adapter/PortUsageAdapter.java b/org.omg.sysml.logic/src/main/java/org/omg/sysml/adapter/PortUsageAdapter.java
index e5e7502ff7..c10dad2f0d 100644
--- a/org.omg.sysml.logic/src/main/java/org/omg/sysml/adapter/PortUsageAdapter.java
+++ b/org.omg.sysml.logic/src/main/java/org/omg/sysml/adapter/PortUsageAdapter.java
@@ -27,7 +27,7 @@
 import org.omg.sysml.lang.sysml.PortUsage;
 import org.omg.sysml.lang.sysml.Type;
 
-public class PortUsageAdapter extends UsageAdapter {
+public class PortUsageAdapter extends OccurrenceUsageAdapter {
 
 	public PortUsageAdapter(PortUsage element) {
 		super(element);
diff --git a/org.omg.sysml.model.bundle/lib/org.omg.sysml.model-0.62.0-SNAPSHOT.jar b/org.omg.sysml.model.bundle/lib/org.omg.sysml.model-0.62.0-SNAPSHOT.jar
index 9ac46e96fa..653f74395a 100644
Binary files a/org.omg.sysml.model.bundle/lib/org.omg.sysml.model-0.62.0-SNAPSHOT.jar and b/org.omg.sysml.model.bundle/lib/org.omg.sysml.model-0.62.0-SNAPSHOT.jar differ
diff --git a/sysml/src/examples/Simple Tests/PartTest.sysml b/sysml/src/examples/Simple Tests/PartTest.sysml
index 1ec56ab313..21fd642bf5 100644
--- a/sysml/src/examples/Simple Tests/PartTest.sysml	
+++ b/sysml/src/examples/Simple Tests/PartTest.sysml	
@@ -19,7 +19,9 @@ package PartTest {
 		port x: ~C {
 		    port p;
 		    ref port q;
+		    timeslice port x1;
 		}
+		timeslice part B1;
 		package P { }
 		
 		succession flow x.p to a1.aa.receiver;