diff --git a/public/scala/src/org/broadinstitute/sting/queue/engine/pbsengine/PbsEngineJobManager.scala b/public/scala/src/org/broadinstitute/sting/queue/engine/pbsengine/PbsEngineJobManager.scala
new file mode 100644
index 000000000..4a1dda78f
--- /dev/null
+++ b/public/scala/src/org/broadinstitute/sting/queue/engine/pbsengine/PbsEngineJobManager.scala
@@ -0,0 +1,24 @@
+/*
+* PBS Engine Job Manager
+* this plugin has been developed modifying the Grid Engine plugin,
+* used as a template: thanks to the author for providing the base 
+* of this work
+* 
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
+* THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+package org.broadinstitute.sting.queue.engine.pbsengine
+
+import org.broadinstitute.sting.queue.function.CommandLineFunction
+import org.broadinstitute.sting.queue.engine.drmaa.DrmaaJobManager
+
+class PbsEngineJobManager extends DrmaaJobManager {
+  override def create(function: CommandLineFunction) = new PbsEngineJobRunner(session, function)
+}
diff --git a/public/scala/src/org/broadinstitute/sting/queue/engine/pbsengine/PbsEngineJobRunner.scala b/public/scala/src/org/broadinstitute/sting/queue/engine/pbsengine/PbsEngineJobRunner.scala
new file mode 100644
index 000000000..fb00fe21f
--- /dev/null
+++ b/public/scala/src/org/broadinstitute/sting/queue/engine/pbsengine/PbsEngineJobRunner.scala
@@ -0,0 +1,91 @@
+/*
+* PBS Engine Job Runner
+* this plugin has been developed modifying the Grid Engine plugin,
+* used as a template: thanks to the author for providing the base 
+* of this work
+* 
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
+* THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+package org.broadinstitute.sting.queue.engine.pbsengine
+
+import org.broadinstitute.sting.queue.util.Logging
+import org.broadinstitute.sting.queue.function.CommandLineFunction
+import org.broadinstitute.sting.queue.engine.drmaa.DrmaaJobRunner
+import org.ggf.drmaa.Session
+
+/**
+ * Runs jobs on a PBS/Torque Engine compute cluster.
+ * NB - THIS FILE HAS BEEN MODIFIED from the original code
+ * of the GridEngine package
+ */
+class PbsEngineJobRunner(session: Session, function: CommandLineFunction) extends DrmaaJobRunner(session, function) with Logging {
+  // Pbs Engine disallows certain characters from being in job names.
+  // This replaces all illegal characters with underscores
+  protected override val jobNameFilter = """[\n\t\r/:,@\\*?]"""
+  protected override val minRunnerPriority = -1023
+  protected override val maxRunnerPriority = 0
+
+  override protected def functionNativeSpec = {
+  
+  	// create nativeSpec variable
+  		var nativeSpec: String = ""
+
+    // If a project name is set specify the project name
+    if (function.jobProject != null)
+      nativeSpec += " -P " + function.jobProject
+
+    // If the job queue is set specify the job queue
+    if (function.jobQueue != null)
+      nativeSpec += " -q " + function.jobQueue
+    else
+      nativeSpec += " -q normal "	
+
+    // If the resident set size is requested pass on the memory request
+    // mem_free is the standard, but may also be virtual_free or even not available
+    
+    if (function.qSettings.residentRequestParameter != null && function.residentRequest.isDefined)
+      nativeSpec += " -l %s=%dM".format(function.qSettings.residentRequestParameter, function.residentRequest.map(_ * 1024).get.ceil.toInt)
+
+    // If the resident set size limit is defined specify the memory limit
+    if (function.residentLimit.isDefined)
+      nativeSpec += " -l mem=%dM".format(function.residentLimit.map(_ * 1024).get.ceil.toInt)
+
+    // If more than 1 core is requested, set the proper request
+    // the cores will be requested as part of a single node
+    
+    if ( function.nCoresRequest.getOrElse(1) > 1 ) {
+      if ( function.qSettings.dontRequestMultipleCores )
+        logger.warn("Sending multicore job %s to farm without requesting appropriate number of cores (%d)".format(
+          function.shortDescription, function.nCoresRequest.get))
+      else
+        nativeSpec += " -l nodes=1:ppn=%d".format(function.qSettings.parallelEnvironmentName, function.nCoresRequest.get)
+    }
+
+    // Pass on any job resource requests
+    // NB: blank because resource requests in PBS can be preceded by different
+    // arguments, i.e. -l but also -o or -j if they are not exactly "resources" strictly speaking
+    // therefore the user will add them in the request, i.e. -jobResReq "-j oe"
+    // but this will allow more flexibility in setting the options for PBS jobs on different Clusters
+    
+    nativeSpec += function.jobResourceRequests.map(" " + _).mkString
+
+    // Pass on any job environment names
+    nativeSpec += function.jobEnvironmentNames.map(" " + _).mkString
+
+    // If the priority is set specify the priority
+    val priority = functionPriority
+    if (priority.isDefined)
+      nativeSpec += " -p " + priority.get
+
+    logger.debug("Native spec is: %s".format(nativeSpec))
+    (nativeSpec + " " + super.functionNativeSpec).trim()
+  }
+}