diff --git a/.gitignore b/.gitignore
index 8524ee842..4a40bd1ce 100644
--- a/.gitignore
+++ b/.gitignore
@@ -326,4 +326,5 @@ Temporary Items
 ###################################
 
 # VSCode
-.vscode
\ No newline at end of file
+.vscode
+docgen/renv
\ No newline at end of file
diff --git a/README.md b/README.md
index c866493af..4822695ab 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,7 @@ To use this project in your project, simply add the following dependency to your
 <dependency>
     <groupId>gov.hhs.aspr.ms.gcm</groupId>
     <artifactId>simulation</artifactId>
-    <version>4.2.0</version>
+    <version>4.4.0</version>
 </dependency>
 ```
 
@@ -53,7 +53,7 @@ Data managers and actors are organized into plugins. A GCM model is thus compose
 ### Requirements
 - Maven 3.8.x
 - Java 17
-- Your favroite IDE for developing Java projects
+- Your favorite IDE for developing Java projects
 - Modeling Utilities located [here](https://github.com/HHS/ASPR-ms-util)
 
 *Note that Modeling Utilities is in Maven Central, so there is no need to clone and build it. 
@@ -69,7 +69,7 @@ To build this project:
 The documentation can be found at [https://hhs.github.io/ASPR-8/](https://hhs.github.io/ASPR-8/)
 
 ## Lessons
-The documentation contains lessons which the code can be found in [lessons](lessons).
+Code for all lessons in the documentation above can be found in [lessons](lessons).
 
 <!-- MARKDOWN LINKS & IMAGES -->
 [contributors-shield]: https://img.shields.io/github/contributors/HHS/ASPR-8
diff --git a/simulation/src/main/java/gov/hhs/aspr/ms/gcm/simulation/nucleus/ActorContext.java b/simulation/src/main/java/gov/hhs/aspr/ms/gcm/simulation/nucleus/ActorContext.java
index 5397c77ce..41a843456 100644
--- a/simulation/src/main/java/gov/hhs/aspr/ms/gcm/simulation/nucleus/ActorContext.java
+++ b/simulation/src/main/java/gov/hhs/aspr/ms/gcm/simulation/nucleus/ActorContext.java
@@ -13,6 +13,7 @@
  * managers to actors. It is supplied by the engine each time it interacts with
  * an actor. Actors are defined by this context. If this context is passed to a
  * method invocation, then that method is an actor method.
+ * 
  */
 public final class ActorContext {
 
@@ -251,5 +252,31 @@ public List<ActorPlan> retrievePlans() {
 	public Optional<Double> getSimulationHaltTime() {
 		return simulation.getSimulationHaltTime();
 	}
+	
+	/**
+	 * Returns the plugin data object associated with the given class reference
+	 * 
+	 * @throws ContractException
+	 *                           <ul>
+	 *                           <li>{@linkplain NucleusError#NULL_PLUGIN_DATA_CLASS}
+	 *                           if the class reference is null</li>
+	 *                           <li>{@linkplain NucleusError#AMBIGUOUS_PLUGIN_DATA_CLASS}
+	 *                           if more than one plugin data object matches the
+	 *                           class reference</li>
+	 *                           </ul>
+	 */
+	public <T extends PluginData> Optional<T> getPluginData(Class<T> pluginDataClass) {
+		return simulation.getPluginData(pluginDataClass);
+	}
+
+	/**
+	 * Returns the plugin data objects associated with the given class reference
+	 * 
+	 * @throws ContractException {@linkplain NucleusError#NULL_PLUGIN_DATA_CLASS} if
+	 *                           the class reference is null
+	 */
+	public <T extends PluginData> List<T> getPluginDatas(Class<T> pluginDataClass) {
+		return simulation.getPluginDatas(pluginDataClass);
+	}
 
 }
diff --git a/simulation/src/main/java/gov/hhs/aspr/ms/gcm/simulation/nucleus/DataManagerContext.java b/simulation/src/main/java/gov/hhs/aspr/ms/gcm/simulation/nucleus/DataManagerContext.java
index dfbbaa6b8..0345e0cb9 100644
--- a/simulation/src/main/java/gov/hhs/aspr/ms/gcm/simulation/nucleus/DataManagerContext.java
+++ b/simulation/src/main/java/gov/hhs/aspr/ms/gcm/simulation/nucleus/DataManagerContext.java
@@ -315,5 +315,31 @@ public DataManagerId getDataManagerId() {
 	public Optional<Double> getSimulationHaltTime() {
 		return simulation.getSimulationHaltTime();
 	}
+	
+	/**
+	 * Returns the plugin data object associated with the given class reference
+	 * 
+	 * @throws ContractException
+	 *                           <ul>
+	 *                           <li>{@linkplain NucleusError#NULL_PLUGIN_DATA_CLASS}
+	 *                           if the class reference is null</li>
+	 *                           <li>{@linkplain NucleusError#AMBIGUOUS_PLUGIN_DATA_CLASS}
+	 *                           if more than one plugin data object matches the
+	 *                           class reference</li>
+	 *                           </ul>
+	 */
+	public <T extends PluginData> Optional<T> getPluginData(Class<T> pluginDataClass) {
+		return simulation.getPluginData(pluginDataClass);
+	}
+
+	/**
+	 * Returns the plugin data objects associated with the given class reference
+	 * 
+	 * @throws ContractException {@linkplain NucleusError#NULL_PLUGIN_DATA_CLASS} if
+	 *                           the class reference is null
+	 */
+	public <T extends PluginData> List<T> getPluginDatas(Class<T> pluginDataClass) {
+		return simulation.getPluginDatas(pluginDataClass);
+	}
 
 }
diff --git a/simulation/src/main/java/gov/hhs/aspr/ms/gcm/simulation/nucleus/ReportContext.java b/simulation/src/main/java/gov/hhs/aspr/ms/gcm/simulation/nucleus/ReportContext.java
index 938a57fe3..94fe84987 100644
--- a/simulation/src/main/java/gov/hhs/aspr/ms/gcm/simulation/nucleus/ReportContext.java
+++ b/simulation/src/main/java/gov/hhs/aspr/ms/gcm/simulation/nucleus/ReportContext.java
@@ -202,5 +202,31 @@ public List<ReportPlan> retrievePlans() {
 	public Optional<Double> getSimulationHaltTime() {
 		return simulation.getSimulationHaltTime();
 	}
+	
+	/**
+	 * Returns the plugin data object associated with the given class reference
+	 * 
+	 * @throws ContractException
+	 *                           <ul>
+	 *                           <li>{@linkplain NucleusError#NULL_PLUGIN_DATA_CLASS}
+	 *                           if the class reference is null</li>
+	 *                           <li>{@linkplain NucleusError#AMBIGUOUS_PLUGIN_DATA_CLASS}
+	 *                           if more than one plugin data object matches the
+	 *                           class reference</li>
+	 *                           </ul>
+	 */
+	public <T extends PluginData> Optional<T> getPluginData(Class<T> pluginDataClass) {
+		return simulation.getPluginData(pluginDataClass);
+	}
+
+	/**
+	 * Returns the plugin data objects associated with the given class reference
+	 * 
+	 * @throws ContractException {@linkplain NucleusError#NULL_PLUGIN_DATA_CLASS} if
+	 *                           the class reference is null
+	 */
+	public <T extends PluginData> List<T> getPluginDatas(Class<T> pluginDataClass) {
+		return simulation.getPluginDatas(pluginDataClass);
+	}
 
 }
diff --git a/simulation/src/test/java/gov/hhs/aspr/ms/gcm/simulation/nucleus/AT_DataManagerContext.java b/simulation/src/test/java/gov/hhs/aspr/ms/gcm/simulation/nucleus/AT_DataManagerContext.java
index de788dfb7..3ce1cd0ba 100644
--- a/simulation/src/test/java/gov/hhs/aspr/ms/gcm/simulation/nucleus/AT_DataManagerContext.java
+++ b/simulation/src/test/java/gov/hhs/aspr/ms/gcm/simulation/nucleus/AT_DataManagerContext.java
@@ -12,6 +12,7 @@
 import java.util.ArrayList;
 import java.util.LinkedHashSet;
 import java.util.List;
+import java.util.Optional;
 import java.util.Set;
 import java.util.function.BiConsumer;
 import java.util.function.Consumer;
@@ -1333,4 +1334,163 @@ public void testGetDataManagerId() {
 				.execute();//
 
 	}
+	
+	private static class LocalPluginData implements PluginData {
+
+		public static class Builder implements PluginDataBuilder {
+			@Override
+			public LocalPluginData build() {
+				return new LocalPluginData();
+			}
+		}
+
+		@Override
+		public PluginDataBuilder toBuilder() {
+			return new Builder();
+		}
+	}
+	
+	private static class LocalPluginData2 implements PluginData {
+
+		public static class Builder implements PluginDataBuilder {
+			@Override
+			public LocalPluginData2 build() {
+				return new LocalPluginData2();
+			}
+		}
+
+		@Override
+		public PluginDataBuilder toBuilder() {
+			return new Builder();
+		}
+	}
+
+	@Test
+	@UnitTestMethod(target = DimensionContext.class, name = "getPluginData", args = { Class.class })
+	public void testGetPluginData() {
+
+		TestPluginData.Builder pluginDataBuilder = TestPluginData.builder();
+		pluginDataBuilder.addTestDataManager("dm", ()->new TestDataManager());
+
+		pluginDataBuilder.addTestDataManagerPlan("dm", new TestDataManagerPlan(0, (c) -> {
+			Optional<LocalPluginData> optional1 = c.getPluginData(LocalPluginData.class);
+			assertTrue(optional1.isPresent());
+			Optional<LocalPluginData2> optional2 = c.getPluginData(LocalPluginData2.class);
+			assertFalse(optional2.isPresent());
+
+		}));
+
+		// build the plugin
+		TestPluginData testPluginData = pluginDataBuilder.build();
+		Plugin testPlugin = TestPlugin.getTestPlugin(testPluginData);
+
+		Plugin localPlugin = Plugin.builder()//
+				.setPluginId(new SimplePluginId("localPlugin"))//
+				.addPluginData(new LocalPluginData())//
+				.build();
+
+		// run the simulation
+		Simulation.builder()//
+				.addPlugin(testPlugin)//
+				.addPlugin(localPlugin)//
+				.build()//
+				.execute();//
+
+		// precondition test: if more than one plugin data object matches the class
+		// reference
+		ContractException contractException = assertThrows(ContractException.class, () -> {
+			Plugin lp = Plugin.builder()//
+					.setPluginId(new SimplePluginId("localPlugin"))//
+					.addPluginData(new LocalPluginData())//
+					.addPluginData(new LocalPluginData())//
+					.build();
+
+			Simulation.builder()//
+					.addPlugin(lp)//
+					.addPlugin(TestPlugin.getTestPlugin(
+							
+							TestPluginData.builder()//
+							.addTestDataManager("dm", ()->new TestDataManager())//
+							.addTestActorPlan("dm", new TestActorPlan(0, (c) -> {
+								c.getPluginData(LocalPluginData.class);
+							})).build()))//
+					.build()//
+					.execute();//
+		});
+		assertEquals(NucleusError.AMBIGUOUS_PLUGIN_DATA_CLASS, contractException.getErrorType());
+
+		// precondition test: if the class reference is null
+		contractException = assertThrows(ContractException.class, () -> {
+			Simulation.builder()//
+					.addPlugin(TestPlugin.getTestPlugin(
+							TestPluginData.builder()//
+							.addTestDataManager("dm", ()->new TestDataManager())
+							.addTestActorPlan("dm", new TestActorPlan(0, (c) -> {
+								c.getPluginData(null);
+							})).build()))//
+					.build()//
+					.execute();//
+		});
+		assertEquals(NucleusError.NULL_PLUGIN_DATA_CLASS, contractException.getErrorType());
+
+	}
+
+	@Test
+	@UnitTestMethod(target = DimensionContext.class, name = "getPluginDatas", args = { Class.class })
+	public void testGetPluginDatas() {
+		/*
+		 * Returns the plugin data objects associated with the given class reference
+		 * 
+		 * @throws ContractException {@linkplain NucleusError#NULL_PLUGIN_DATA_CLASS} if
+		 * the class reference is null
+		 */
+		TestPluginData.Builder pluginDataBuilder = TestPluginData.builder();
+		pluginDataBuilder.addTestDataManager("dm",()->new TestDataManager());
+		pluginDataBuilder.addTestDataManagerPlan("dm", new TestDataManagerPlan(0, (c) -> {
+			List<LocalPluginData> localPluginDatas = c.getPluginDatas(LocalPluginData.class);
+			assertNotNull(localPluginDatas);
+			assertEquals(2,localPluginDatas.size());
+			
+			List<LocalPluginData2> localPluginData2s = c.getPluginDatas(LocalPluginData2.class);
+			assertNotNull(localPluginData2s);
+			assertEquals(0,localPluginData2s.size());
+			
+			List<PluginData> pluginDatas = c.getPluginDatas(PluginData.class);
+			assertNotNull(pluginDatas);
+			assertEquals(3,pluginDatas.size());
+
+		}));
+
+		// build the plugin
+		TestPluginData testPluginData = pluginDataBuilder.build();
+		Plugin testPlugin = TestPlugin.getTestPlugin(testPluginData);
+
+		Plugin localPlugin = Plugin.builder()//
+				.setPluginId(new SimplePluginId("localPlugin"))//
+				.addPluginData(new LocalPluginData())//
+				.addPluginData(new LocalPluginData())//
+				.build();
+
+		// run the simulation
+		Simulation.builder()//
+				.addPlugin(testPlugin)//
+				.addPlugin(localPlugin)//
+				.build()//
+				.execute();//
+
+		// precondition test: if the class reference is null
+		ContractException contractException = assertThrows(ContractException.class, () -> {
+			Simulation.builder()//
+					.addPlugin(TestPlugin.getTestPlugin(
+							TestPluginData.builder()//
+							.addTestDataManager("dm", ()->new TestDataManager())//
+							.addTestActorPlan("dm", new TestActorPlan(0, (c) -> {
+								c.getPluginDatas(null);
+							})).build()))//
+					.build()//
+					.execute();//
+		});
+		assertEquals(NucleusError.NULL_PLUGIN_DATA_CLASS, contractException.getErrorType());
+
+	}
 }
diff --git a/simulation/src/test/java/gov/hhs/aspr/ms/gcm/simulation/nucleus/AT_DimesionContext.java b/simulation/src/test/java/gov/hhs/aspr/ms/gcm/simulation/nucleus/AT_DimesionContext.java
index 199f3e5ea..a7a93f46c 100644
--- a/simulation/src/test/java/gov/hhs/aspr/ms/gcm/simulation/nucleus/AT_DimesionContext.java
+++ b/simulation/src/test/java/gov/hhs/aspr/ms/gcm/simulation/nucleus/AT_DimesionContext.java
@@ -502,4 +502,6 @@ public void testBuild() {
 		assertEquals(NucleusError.NULL_SIMULATION_STATE, contractException.getErrorType());
 
 	}
+	
+	
 }
diff --git a/simulation/src/test/java/gov/hhs/aspr/ms/gcm/simulation/nucleus/AT_Experiment.java b/simulation/src/test/java/gov/hhs/aspr/ms/gcm/simulation/nucleus/AT_Experiment.java
index 023d270c0..cd44c9ca5 100644
--- a/simulation/src/test/java/gov/hhs/aspr/ms/gcm/simulation/nucleus/AT_Experiment.java
+++ b/simulation/src/test/java/gov/hhs/aspr/ms/gcm/simulation/nucleus/AT_Experiment.java
@@ -398,7 +398,7 @@ private void testSetHaltOnException() {
 		testSetHaltOnException_Implicit();
 	}
 
-	@Test
+	
 	private void testSetHaltOnException_Explicit_True() {
 		// This test will run the experiment two times in single thread mode
 
diff --git a/simulation/src/test/java/gov/hhs/aspr/ms/gcm/simulation/nucleus/AT_ReportContext.java b/simulation/src/test/java/gov/hhs/aspr/ms/gcm/simulation/nucleus/AT_ReportContext.java
index ff511fd34..4bc174c53 100644
--- a/simulation/src/test/java/gov/hhs/aspr/ms/gcm/simulation/nucleus/AT_ReportContext.java
+++ b/simulation/src/test/java/gov/hhs/aspr/ms/gcm/simulation/nucleus/AT_ReportContext.java
@@ -13,6 +13,7 @@
 import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Map;
+import java.util.Optional;
 import java.util.Set;
 import java.util.function.BiConsumer;
 import java.util.function.Consumer;
@@ -820,4 +821,164 @@ private void planRetrievalSimCloseSubscribe(ReportContext context, List<ReportPl
 		assertEquals(expectedPlans.size(), plans.size());
 		assertEquals(expectedPlans, plans);
 	}
+	
+	private static class LocalPluginData implements PluginData {
+
+		public static class Builder implements PluginDataBuilder {
+			@Override
+			public LocalPluginData build() {
+				return new LocalPluginData();
+			}
+		}
+
+		@Override
+		public PluginDataBuilder toBuilder() {
+			return new Builder();
+		}
+	}
+	
+	private static class LocalPluginData2 implements PluginData {
+
+		public static class Builder implements PluginDataBuilder {
+			@Override
+			public LocalPluginData2 build() {
+				return new LocalPluginData2();
+			}
+		}
+
+		@Override
+		public PluginDataBuilder toBuilder() {
+			return new Builder();
+		}
+	}
+
+	@Test
+	@UnitTestMethod(target = ReportContext.class, name = "getPluginData", args = { Class.class })
+	public void testGetPluginData() {
+
+		TestPluginData.Builder pluginDataBuilder = TestPluginData.builder();
+		
+		pluginDataBuilder.addTestActorPlan("actor", new TestActorPlan(10, (c) -> {}));
+		
+		pluginDataBuilder.addTestReportPlan("report", new TestReportPlan(0, (c) -> {
+			Optional<LocalPluginData> optional1 = c.getPluginData(LocalPluginData.class);
+			assertTrue(optional1.isPresent());
+			Optional<LocalPluginData2> optional2 = c.getPluginData(LocalPluginData2.class);
+			assertFalse(optional2.isPresent());
+
+		}));
+
+		// build the plugin
+		TestPluginData testPluginData = pluginDataBuilder.build();
+		Plugin testPlugin = TestPlugin.getTestPlugin(testPluginData);
+
+		Plugin localPlugin = Plugin.builder()//
+				.setPluginId(new SimplePluginId("localPlugin"))//
+				.addPluginData(new LocalPluginData())//
+				.build();
+
+		// run the simulation
+		Simulation.builder()//
+				.addPlugin(testPlugin)//
+				.addPlugin(localPlugin)//
+				.build()//
+				.execute();//
+
+		// precondition test: if more than one plugin data object matches the class
+		// reference
+		ContractException contractException = assertThrows(ContractException.class, () -> {
+			Plugin lp = Plugin.builder()//
+					.setPluginId(new SimplePluginId("localPlugin"))//
+					.addPluginData(new LocalPluginData())//
+					.addPluginData(new LocalPluginData())//
+					.build();
+
+			Simulation.builder()//
+					.addPlugin(lp)//
+					.addPlugin(TestPlugin.getTestPlugin(							
+							TestPluginData.builder()//							
+							.addTestActorPlan("actor", new TestActorPlan(10, (c) -> {}))//
+							.addTestReportPlan("report", new TestReportPlan(0, (c) -> {
+								c.getPluginData(LocalPluginData.class);
+							})).build()))//
+					.build()//
+					.execute();//
+		});
+		assertEquals(NucleusError.AMBIGUOUS_PLUGIN_DATA_CLASS, contractException.getErrorType());
+
+		// precondition test: if the class reference is null
+		contractException = assertThrows(ContractException.class, () -> {
+			Simulation.builder()//
+					.addPlugin(TestPlugin.getTestPlugin(
+							TestPluginData.builder()//
+							.addTestActorPlan("actor", new TestActorPlan(10, (c) -> {}))//
+							.addTestReportPlan("dm", new TestReportPlan(0, (c) -> {
+								c.getPluginData(null);
+							})).build()))//
+					.build()//
+					.execute();//
+		});
+		assertEquals(NucleusError.NULL_PLUGIN_DATA_CLASS, contractException.getErrorType());
+
+	}
+
+	@Test
+	@UnitTestMethod(target = ReportContext.class, name = "getPluginDatas", args = { Class.class })
+	public void testGetPluginDatas() {
+		/*
+		 * Returns the plugin data objects associated with the given class reference
+		 * 
+		 * @throws ContractException {@linkplain NucleusError#NULL_PLUGIN_DATA_CLASS} if
+		 * the class reference is null
+		 */
+		TestPluginData.Builder pluginDataBuilder = TestPluginData.builder();
+		pluginDataBuilder.addTestActorPlan("actor", new TestActorPlan(10, (c) -> {}));
+		pluginDataBuilder.addTestReportPlan("report", new TestReportPlan(4, (c) -> {
+			List<LocalPluginData> localPluginDatas = c.getPluginDatas(LocalPluginData.class);
+			assertNotNull(localPluginDatas);
+			assertEquals(2,localPluginDatas.size());
+			
+			List<LocalPluginData2> localPluginData2s = c.getPluginDatas(LocalPluginData2.class);
+			assertNotNull(localPluginData2s);
+			assertEquals(0,localPluginData2s.size());
+			
+			List<PluginData> pluginDatas = c.getPluginDatas(PluginData.class);
+			assertNotNull(pluginDatas);
+			assertEquals(3,pluginDatas.size());
+
+		}));
+
+		// build the plugin
+		TestPluginData testPluginData = pluginDataBuilder.build();
+		Plugin testPlugin = TestPlugin.getTestPlugin(testPluginData);
+
+		Plugin localPlugin = Plugin.builder()//
+				.setPluginId(new SimplePluginId("localPlugin"))//
+				.addPluginData(new LocalPluginData())//
+				.addPluginData(new LocalPluginData())//
+				.build();
+
+		// run the simulation
+		Simulation.builder()//
+				.addPlugin(testPlugin)//
+				.addPlugin(localPlugin)//
+				.build()//
+				.execute();//
+
+		// precondition test: if the class reference is null
+		ContractException contractException = assertThrows(ContractException.class, () -> {
+			Simulation.builder()//
+					.addPlugin(TestPlugin.getTestPlugin(
+							TestPluginData.builder()//
+							.addTestActorPlan("actor", new TestActorPlan(10, (c) -> {}))//
+							.addTestReportPlan("report", new TestReportPlan(0, (c) -> {
+								c.getPluginDatas(null);
+							})).build()))//
+					.build()//
+					.execute();//
+		});
+		assertEquals(NucleusError.NULL_PLUGIN_DATA_CLASS, contractException.getErrorType());
+
+	}
+
 }