diff --git a/pyaccuwage/__init__.py b/pyaccuwage/__init__.py
index 749fffa..4fbf87f 100644
--- a/pyaccuwage/__init__.py
+++ b/pyaccuwage/__init__.py
@@ -42,7 +42,7 @@ def test_record_order():
         record.TotalRecord(),
         record.FinalRecord(),
     ]
-    verify_record_order(records)
+    validate_record_order(records)
 
 
 def test_load(fp):
@@ -85,7 +85,7 @@ def dumps(records):
 # THIS WAS IN CONTROLLER, BUT UNLESS WE
 # REALLY NEED A CONTROLLER CLASS, IT'S SIMPLER
 # TO JUST KEEP IT IN HERE.
-def verify_required_records(records):
+def validate_required_records(records):
     types = [rec.__class__.__name__ for rec in records]
     req_types = []
 
@@ -101,7 +101,7 @@ def verify_required_records(records):
         else:
             req_types.remove(req)
 
-def verify_record_order(records):
+def validate_record_order(records):
     import record
     from fields import ValidationError
     
@@ -142,9 +142,9 @@ def verify_record_order(records):
     if len(filter(lambda x:isinstance(x, record.FinalRecord), records)) != 1:
         raise ValidationError("Incorrect number of FinalRecords")
 
-def verify_records(records):
-    verify_required_records(records)
-    verify_record_order(records)
+def validate_records(records):
+    validate_required_records(records)
+    validate_record_order(records)
 
 def test_unique_fields():
     r1 = EmployeeWageRecord()
diff --git a/pyaccuwage/model.py b/pyaccuwage/model.py
index be21055..bb040b3 100644
--- a/pyaccuwage/model.py
+++ b/pyaccuwage/model.py
@@ -1,4 +1,4 @@
-from fields import Field
+from fields import Field, ValidationError
 import copy
 import pdb
 
@@ -51,8 +51,11 @@ class Model(object):
                  custom_validator(f)
 
     def output(self):
-        return ''.join([self.record_identifier] + [field.get_data() for field in self.get_sorted_fields()])
-    
+        result = ''.join([self.record_identifier] + [field.get_data() for field in self.get_sorted_fields()])
+        if len(result) != 512:
+            raise ValidationError("Record result length not equal to 512 bytes")
+        return result
+
     def read(self, fp):
         for field in self.get_sorted_fields():
             field.read(fp)