diff --git a/SimPEG/Rules.py b/SimPEG/Directives.py
similarity index 84%
rename from SimPEG/Rules.py
rename to SimPEG/Directives.py
index aed5e9d2..5f26c022 100644
--- a/SimPEG/Rules.py
+++ b/SimPEG/Directives.py
@@ -1,7 +1,7 @@
 import Utils, numpy as np
 
-class InversionRule(object):
-    """InversionRule"""
+class InversionDirective(object):
+    """InversionDirective"""
 
     debug    = False    #: Print debugging information
 
@@ -12,12 +12,12 @@ class InversionRule(object):
 
     @property
     def inversion(self):
-        """This is the inversion of the InversionRule instance."""
+        """This is the inversion of the InversionDirective instance."""
         return getattr(self,'_inversion',None)
     @inversion.setter
     def inversion(self, i):
         if getattr(self,'_inversion',None) is not None:
-            print 'Warning: InversionRule %s has switched to a new inversion.' % self.__name__
+            print 'Warning: InversionDirective %s has switched to a new inversion.' % self.__name__
         self._inversion = i
 
     @property
@@ -40,14 +40,14 @@ class InversionRule(object):
     def finish(self):
         pass
 
-class RuleList(object):
+class DirectiveList(object):
 
-    rList = None   #: The list of Rules
+    rList = None   #: The list of Directives
 
     def __init__(self, *rules, **kwargs):
         self.rList = []
         for r in rules:
-            assert isinstance(r, InversionRule), 'All rules must be InversionRules not %s' % r.__name__
+            assert isinstance(r, InversionDirective), 'All rules must be InversionDirectives not %s' % r.__name__
             self.rList.append(r)
         Utils.setKwargs(self, **kwargs)
 
@@ -62,7 +62,7 @@ class RuleList(object):
 
     @property
     def inversion(self):
-        """This is the inversion of the InversionRule instance."""
+        """This is the inversion of the InversionDirective instance."""
         return getattr(self,'_inversion',None)
     @inversion.setter
     def inversion(self, i):
@@ -75,16 +75,16 @@ class RuleList(object):
 
     def call(self, ruleType):
         if self.rList is None:
-            if self.debug: 'RuleList is None, no rules to call!'
+            if self.debug: 'DirectiveList is None, no rules to call!'
             return
 
         rules = ['initialize', 'endIter', 'finish']
-        assert ruleType in rules, 'Rule type must be in ["%s"]' % '", "'.join(rules)
+        assert ruleType in rules, 'Directive type must be in ["%s"]' % '", "'.join(rules)
         for r in self.rList:
             getattr(r, ruleType)()
 
 
-class BetaEstimate_ByEig(InversionRule):
+class BetaEstimate_ByEig(InversionDirective):
     """BetaEstimate"""
 
     beta0 = None       #: The initial Beta (regularization parameter)
@@ -133,7 +133,7 @@ class BetaEstimate_ByEig(InversionRule):
         self.objFunc.beta = self.beta0
 
 
-class BetaSchedule(InversionRule):
+class BetaSchedule(InversionDirective):
     """BetaSchedule"""
 
     coolingFactor = 2.
diff --git a/SimPEG/Inversion.py b/SimPEG/Inversion.py
index fc541e59..3d96b4b4 100644
--- a/SimPEG/Inversion.py
+++ b/SimPEG/Inversion.py
@@ -1,7 +1,7 @@
 import SimPEG
 from SimPEG import Utils, sp, np
 from Optimization import Remember, IterationPrinters, StoppingCriteria
-import Rules
+import Directives
 
 
 class BaseInversion(object):
@@ -19,12 +19,12 @@ class BaseInversion(object):
     @property
     def ruleList(self):
         if getattr(self,'_ruleList', None) is None:
-            self._ruleList = Rules.RuleList(inversion=self)
+            self._ruleList = Directives.DirectiveList(inversion=self)
         return self._ruleList
 
     @ruleList.setter
     def ruleList(self, value):
-        assert isinstance(value, Rules.RuleList), 'Must be a RuleList'
+        assert isinstance(value, Directives.DirectiveList), 'Must be a RuleList'
         self._ruleList = value
         self._ruleList.inversion = self
 
diff --git a/SimPEG/__init__.py b/SimPEG/__init__.py
index aac0c7f8..ea317e3c 100644
--- a/SimPEG/__init__.py
+++ b/SimPEG/__init__.py
@@ -9,7 +9,7 @@ import Survey
 import Regularization
 import ObjFunction
 import Optimization
-import Rules
+import Directives
 import Inversion
 import Tests
 
diff --git a/Tutorials/Linear.py b/Tutorials/Linear.py
index 59f42cc0..6fcfd17c 100644
--- a/Tutorials/Linear.py
+++ b/Tutorials/Linear.py
@@ -60,9 +60,9 @@ if __name__ == '__main__':
     objFunc = ObjFunction.BaseObjFunction(survey, reg)
     opt = Optimization.InexactGaussNewton(maxIter=20)
     inv = Inversion.BaseInversion(objFunc, opt)
-    beta = Rules.BetaSchedule()
-    betaest = Rules.BetaEstimate_ByEig()
-    inv.ruleList = Rules.RuleList(betaest, beta)
+    beta = Directives.BetaSchedule()
+    betaest = Directives.BetaEstimate_ByEig()
+    inv.ruleList = Directives.DirectiveList(betaest, beta)
     m0 = np.zeros_like(survey.mtrue)
 
     mrec = inv.run(m0)