diff --git a/common-tools/clara-io/src/main/java/org/jlab/io/clara/Clas12Writer.java b/common-tools/clara-io/src/main/java/org/jlab/io/clara/Clas12Writer.java
index dabcdb132c..315864d136 100644
--- a/common-tools/clara-io/src/main/java/org/jlab/io/clara/Clas12Writer.java
+++ b/common-tools/clara-io/src/main/java/org/jlab/io/clara/Clas12Writer.java
@@ -23,7 +23,7 @@
  * 3. Writes HEL::flip, RUN/HEL::scaler, and RUN::unix to new tag-1 events
  * 4. Runs post-processing, writing tag-1 information to all events 
  * 5. Adds .hipo to the output filename, if necessary
- *
+ * 6. Outputs a parallel file of select trigger bits with a raw schema
  * @author baltzell
  */
 public class Clas12Writer extends HipoToHipoWriter {
@@ -34,6 +34,11 @@ public class Clas12Writer extends HipoToHipoWriter {
     SchemaFactory fullSchema;
     boolean postprocess;
 
+    HipoWriterSorted paraWriter;
+    long paraCount;
+    long paraTriggerMask;
+    int paraTriggerPrescale;
+
     private void init(JSONObject opts) {
         fullSchema = new SchemaFactory();
         fullSchema.initFromDirectory(FileUtils.getEnvironmentPath("CLAS12DIR","etc/bankdefs/hipo4"));
@@ -42,6 +47,8 @@ private void init(JSONObject opts) {
         conman = new ConstantsManager();
         conman.init("/runcontrol/hwp","/runcontrol/helicity");
         postprocess = opts.optBoolean("postprocess", false);
+        paraTriggerMask = opts.optLong("paraTriggerMask", 0);
+        paraTriggerPrescale = opts.optInt("paraTriggerPrescale", 0);
         if (opts.has("variation")) conman.setVariation(opts.getString("variation"));
         if (opts.has("timestamp")) conman.setTimeStamp(opts.getString("timestamp"));
     }
@@ -52,7 +59,15 @@ protected HipoWriterSorted createWriter(Path file, JSONObject opts) throws Event
             init(opts);
             HipoWriterSorted w = new HipoWriterSorted();
             super.configure(w, opts);
-            w.open(file.toString().endsWith(".hipo") ? file.toString() : file.toString()+".hipo");
+            String dirname = file.getParent().toString();
+            String basename = file.getFileName().toString();
+            if (!basename.endsWith(".hipo")) basename += ".hipo";
+            if (paraTriggerMask > 0) {
+                paraWriter = new HipoWriterSorted();
+                paraWriter.getSchemaFactory().copy(fullSchema);
+                paraWriter.open(dirname + "/tb" + basename.substring(basename.indexOf("_")));
+            }
+            w.open(dirname + "/" + basename);
             return w;
         } catch (Exception e) {
             throw new EventWriterException(e);
@@ -64,6 +79,17 @@ protected void writeEvent(Object event) throws EventWriterException {
         Event t = serial.read((Event)event);
         if (!t.isEmpty()) writer.addEvent(t, 1);
         super.writeEvent(event);
+        writeRaw((Event)event, t);
+    }
+
+    void writeRaw(Event physics, Event tagged) {
+        if (paraTriggerMask > 0) {
+            physics.read(runConfig);
+            if (runConfig.getRows()>0 && (runConfig.getLong("trigger",0) & paraTriggerMask) != 0)
+                if (paraTriggerPrescale<=0 || (++paraCount % paraTriggerPrescale) == 0)
+                    paraWriter.addEvent(physics);
+            if (!tagged.isEmpty()) paraWriter.addEvent(tagged, tagged.getEventTag());
+        }
     }
 
     @Override
@@ -72,6 +98,7 @@ protected void closeWriter() {
         super.closeWriter();
         if (postprocess) postprocess();
         serial.clear();
+        if (paraTriggerMask > 0) paraWriter.close();
     }
  
     /**
diff --git a/etc/services/rgd-clarode.yml b/etc/services/rgd-clarode.yml
index e46daddc7e..26d9d96ffd 100644
--- a/etc/services/rgd-clarode.yml
+++ b/etc/services/rgd-clarode.yml
@@ -7,6 +7,8 @@ configuration:
   io-services:
     writer:
       schema_dir: dst
+      rawTriggerMask: 0x8000000000
+      rawTriggerPrescale: 0
   services:
     MAGFIELDS:
       magfieldSolenoidMap: Symm_solenoid_r601_phi1_z1201_13June2018.dat