Index: maven-artifact/src/main/java/org/apache/maven/artifact/Artifact.java
===================================================================
--- maven-artifact/src/main/java/org/apache/maven/artifact/Artifact.java	(revision 1159034)
+++ maven-artifact/src/main/java/org/apache/maven/artifact/Artifact.java	(working copy)
@@ -60,8 +60,12 @@
 
     String SCOPE_SYSTEM = "system";
 
-    String SCOPE_IMPORT = "import";   // Used to import dependencyManagement dependencies
+    /** Used to import dependencyManagement dependencies */
+    String SCOPE_IMPORT = "import";
 
+    /** Used to exclude transitive dependencies */
+    String SCOPE_EXCLUDED = "excluded";
+
     String getGroupId();
 
     String getArtifactId();
Index: maven-core/src/main/java/org/apache/maven/DefaultProjectDependenciesResolver.java
===================================================================
--- maven-core/src/main/java/org/apache/maven/DefaultProjectDependenciesResolver.java	(revision 1159034)
+++ maven-core/src/main/java/org/apache/maven/DefaultProjectDependenciesResolver.java	(working copy)
@@ -103,37 +103,6 @@
             return resolved;
         }
 
-        /*
-
-        Logic for transitve global exclusions
-
-        List<String> exclusions = new ArrayList<String>();
-
-        for ( Dependency d : project.getDependencies() )
-        {
-            if ( d.getExclusions() != null )
-            {
-                for ( Exclusion e : d.getExclusions() )
-                {
-                    exclusions.add(  e.getGroupId() + ":" + e.getArtifactId() );
-                }
-            }
-        }
-
-        ArtifactFilter scopeFilter = new ScopeArtifactFilter( scope );
-
-        ArtifactFilter filter;
-
-        if ( ! exclusions.isEmpty() )
-        {
-            filter = new AndArtifactFilter( Arrays.asList( new ArtifactFilter[]{ new ExcludesArtifactFilter( exclusions ), scopeFilter } ) );
-        }
-        else
-        {
-            filter = scopeFilter;
-        }
-        */
-
         CumulativeScopeArtifactFilter resolutionScopeFilter = new CumulativeScopeArtifactFilter( scopesToResolve );
 
         CumulativeScopeArtifactFilter collectionScopeFilter = new CumulativeScopeArtifactFilter( scopesToCollect );
Index: maven-core/src/main/java/org/apache/maven/lifecycle/internal/LifecycleDependencyResolver.java
===================================================================
--- maven-core/src/main/java/org/apache/maven/lifecycle/internal/LifecycleDependencyResolver.java	(revision 1159034)
+++ maven-core/src/main/java/org/apache/maven/lifecycle/internal/LifecycleDependencyResolver.java	(working copy)
@@ -15,6 +15,16 @@
  * the License.
  */
 
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
 import org.apache.maven.RepositoryUtils;
 import org.apache.maven.artifact.Artifact;
 import org.apache.maven.artifact.ArtifactUtils;
@@ -31,14 +41,16 @@
 import org.codehaus.plexus.component.annotations.Component;
 import org.codehaus.plexus.component.annotations.Requirement;
 import org.codehaus.plexus.logging.Logger;
+import org.sonatype.aether.collection.DependencySelector;
 import org.sonatype.aether.graph.Dependency;
 import org.sonatype.aether.graph.DependencyFilter;
 import org.sonatype.aether.graph.DependencyNode;
+import org.sonatype.aether.util.DefaultRepositorySystemSession;
 import org.sonatype.aether.util.filter.AndDependencyFilter;
 import org.sonatype.aether.util.filter.ScopeDependencyFilter;
+import org.sonatype.aether.util.graph.selector.AndDependencySelector;
+import org.sonatype.aether.util.graph.selector.ExclusionDependencySelector;
 
-import java.util.*;
-
 /**
  * Resolves dependencies for the artifacts in context of the lifecycle build
  * 
@@ -114,6 +126,8 @@
                 }
             }
 
+			setExclusionsDependencySelector(session, getExclusions(project.getDependencies()));
+
             Set<Artifact> artifacts =
                 getDependencies( project, scopesToCollect, scopesToResolve, session, aggregating, projectArtifacts );
 
@@ -145,6 +159,41 @@
         }
     }
 
+	private List<org.apache.maven.model.Dependency> getExclusions( Collection<org.apache.maven.model.Dependency> dependencies )
+	{
+		List<org.apache.maven.model.Dependency> exclusions = new ArrayList<org.apache.maven.model.Dependency>();
+		for ( org.apache.maven.model.Dependency dependency : dependencies )
+		{
+			if ( "excluded".equals(dependency.getScope()) )
+			{
+				exclusions.add(dependency);
+			}
+		}
+		return exclusions;
+	}
+
+	private void setExclusionsDependencySelector( MavenSession session, List<org.apache.maven.model.Dependency> exclusions )
+	{
+		final Set<org.sonatype.aether.graph.Exclusion> globalExclusions = new HashSet<org.sonatype.aether.graph.Exclusion>();
+		for ( org.apache.maven.model.Dependency e : exclusions )
+		{
+			globalExclusions.add(new org.sonatype.aether.graph.Exclusion(e.getGroupId(), e.getArtifactId(), e
+					.getClassifier(), "*"));
+		}
+		final DefaultRepositorySystemSession repositorySession = (DefaultRepositorySystemSession) session
+				.getRepositorySession();
+		final DependencySelector selector = session.getRepositorySession().getDependencySelector();
+		if ( selector != null )
+		{
+			repositorySession.setDependencySelector(AndDependencySelector.newInstance(selector,
+					new ExclusionDependencySelector(globalExclusions)));
+		}
+		else
+		{
+			repositorySession.setDependencySelector(new ExclusionDependencySelector(globalExclusions));
+		}
+	}
+
     private Set<Artifact> getDependencies( MavenProject project, Collection<String> scopesToCollect,
                                            Collection<String> scopesToResolve, MavenSession session,
                                            boolean aggregating, Set<Artifact> projectArtifacts )
Index: maven-model-builder/src/main/java/org/apache/maven/model/validation/DefaultModelValidator.java
===================================================================
--- maven-model-builder/src/main/java/org/apache/maven/model/validation/DefaultModelValidator.java	(revision 1159034)
+++ maven-model-builder/src/main/java/org/apache/maven/model/validation/DefaultModelValidator.java	(working copy)
@@ -446,7 +446,7 @@
                      * In order to don't break backward-compat with those, only warn but don't error out.
                      */
                     validateEnum( prefix + "scope", problems, Severity.WARNING, d.getScope(), d.getManagementKey(), d,
-                                  "provided", "compile", "runtime", "test", "system" );
+                                  "provided", "compile", "runtime", "test", "system", "excluded" );
                 }
             }
         }