diff --git a/back/reimbursinator/policies/hasher.py b/back/backend/hasher.py
similarity index 71%
rename from back/reimbursinator/policies/hasher.py
rename to back/backend/hasher.py
index c831986..1d4352f 100644
--- a/back/reimbursinator/policies/hasher.py
+++ b/back/backend/hasher.py
@@ -1,13 +1,13 @@
 import hashlib
 
 hasher = hashlib.md5()
-with open ('simple_policy.py', 'rb') as afile:
+with open('simple_policy.py', 'rb') as afile:
     buf = afile.read()
     hasher.update(buf)
 print("md5 of simple:   " + hasher.hexdigest())
 
 hasher = hashlib.md5()
-with open ('moderate_policy.py', 'rb') as afile:
+with open('moderate_policy.py', 'rb') as afile:
     buf = afile.read()
     hasher.update(buf)
 print("md5 of moderate: " + hasher.hexdigest())
@@ -15,13 +15,13 @@ print("md5 of moderate: " + hasher.hexdigest())
 
 
 hasher = hashlib.sha1()
-with open ('simple_policy.py', 'rb') as afile:
+with open('simple_policy.py', 'rb') as afile:
     buf = afile.read()
     hasher.update(buf)
 print("sha1 of simple:   " + hasher.hexdigest())
 
 hasher = hashlib.sha1()
-with open ('moderate_policy.py', 'rb') as afile:
+with open('moderate_policy.py', 'rb') as afile:
     buf = afile.read()
     hasher.update(buf)
 print("sha1 of moderate: " + hasher.hexdigest())
diff --git a/back/backend/policy.py b/back/backend/policy.py
new file mode 100644
index 0000000..95e401b
--- /dev/null
+++ b/back/backend/policy.py
@@ -0,0 +1,132 @@
+# simple_policy.py
+from datetime import date
+from policy import Policy, Section
+
+# - For the rules, should one refer to fields by 'section.fields.x'
+# or by the section name eg. 'general_section.fields.x'?
+
+
+#### General
+#### Section 0
+general_section = Section(
+    title="General Info",
+    html_description="",
+    fields={
+        "destination": {"label": "Destination City", "type": "string"}
+    }
+)
+
+general_section.add_rule(
+    title="Destination city check",
+    rule=lambda report, section: section.field.destination == "Timbuktu",
+    rule_break_text="What did the cowboy say about Tim, his wild horse?"
+)
+
+Policy.add_section(general_section)
+
+#### Flight
+#### Section 1
+flight_section = Section(
+    title="Flight Info",
+    html_description="<p>Enter flight details here.</p>",
+    fields={
+        "international": {"label": "Is this an international flight?", "type": "boolean"},
+        "departure_date": {"label": "Departure date", "type": "date"},
+        "return_date": {"label": "Return date", "type": "date"},
+        "fare": {"label": "Fare", "type": "decimal"},
+    }
+)
+
+flight_section.add_rule(
+    title="Airline fare pre-approval check",
+    rule=lambda report, section: section.fields.fare < 500, 
+    rule_break_text="Fares cannot be more than $500"
+)
+
+Policy.add_section(flight_section)
+
+#### Lodging
+#### Section 2
+lodging_section = Section(
+    title="Hotel Info",
+    html_description="<p>Enter hotel info here.\nPer diem rates can be found at <a href='https://www.gsa.gov/travel/plan-book/per-diem-rates'></a></p>",
+    fields={
+        "check-in_date": {"label": "Check-in date", "type": "date"},
+        "check-out_date": {"label": "Check-out date", "type": "date"},
+        "rate": {"label": "Per diem nightly rate", "type": "decimal"},
+        "cost": {"label": "Total Cost", "type": "decimal"}
+    }
+)
+
+def nightly_rate_check(report, section):
+    checkin_date = date(section.fields.checkin_date)
+    checkout_date = date(section.fields.checkout_date)
+    duration = checkout_date - checkin_date
+    return section.fields.cost <= duration * section.fields.rate
+
+section.add_rule(
+    title="",
+    rule=nightly_rate_check,
+    rule_break_text="The average nightly rate cannot be more than the USGSA rate."
+)
+
+Policy.add_section(lodging_section)
+
+#### Local Transportation
+#### Section 3
+transport_section = Section(
+    title="Local Transportation",
+    html_description="<p>How much did you spend on local transportation, in total?</p>",
+    fields={
+        "duration": {"label": "How many days was your trip?", "type": "decimal"},
+        "cost": {"label": "Total cost", "type": "decimal"}
+    }
+)
+
+transport_section.add_rule(
+    title="Total cost check",
+    rule=lambda report, section: section.fields.cost <= section.fields.duration * 10,
+    rule_break_text="Local transportation costs must be less than $10 per day, on average."
+)
+
+Policy.add_section(transport_section)
+
+#### Per Diem
+#### Section 4
+per_diem_section = Section(
+    title="Per Diem",
+    html_description="<p>Enter info about meals and incidentals here.\nPer diem rates can be found at <a href='https://www.gsa.gov/travel/plan-book/per-diem-rates'></a></p>",
+    fields={
+        "duration": {"label": "How many days was your trip?", "type": "decimal"},
+        "rate": {"label": "What is the per diem rate for your destination?", "type": "decimal"},
+        "cost": {"label": "Total Cost for meals and incidentals", "type": "decimal"}
+    }
+)
+
+per_diem_section.add_rule(
+    title="Per Diem Cost Check",
+    rule=lambda report, section: section.fields.cost <= section.fields.duration * section.fields.rate,
+    rule_break_text="The average cost per day for per diem expenses cannot be more than the rate specified by the USGSA."
+)
+
+Policy.add_section(per_diem_section)
+
+'''
+Section(
+    title="",
+    html_description="<p></p>",
+    fields={
+        "": {"label": "", "type": ""}
+    }
+)
+
+section.add_rule(
+    title="",
+    rule=lambda report, section: boolean_statement,
+    rule_break_text=""
+)
+
+#// or, for a rule which doesn’t apply to a specific section...
+#//
+#// add_general_rule(...)
+'''
diff --git a/back/reimbursinator/policies/simple_policy.py b/back/reimbursinator/policies/simple_policy.py
deleted file mode 100644
index 16f1554..0000000
--- a/back/reimbursinator/policies/simple_policy.py
+++ /dev/null
@@ -1,144 +0,0 @@
-# simple_policy.py
-from datetime import date
-
-
-#TODO:
-# - For the rules, should one refer to fields by 'section.fields.x' or by the section name eg. 'general_section.fields.x'?
-
-
-#### General
-#### Section 0
-general_section = Section(
-    title = "General Info",
-    html_description = "",
-    fields = {
-    "destination": {"label": "Destination City", "type": "string"}
-    }
-)
-
-general_section.add_rule(
-    title = "Destination city check",
-    rule = lambda report, section:
-    if section.fields.destination == "Timbuktu":
-    return True
-    else:
-    return False
-    ,
-    rule_break_text = "What did the cowboy say about Tim, his wild horse?"
-)
-
-
-
-#### Flight
-#### Section 1
-flight_section = Section(
-    title = "Flight Info",
-    html_description = "<p>Enter flight details here.</p>",
-    fields = {
-    "international": {"label": "Is this an international flight?", "type": "boolean"},
-    "departure_date": {"label": "Departure date", "type": "date"},
-    "return_date": {"label": "Return date", "type": "date"},
-    "fare": {"label": "Fare", "type": "decimal"},
-    }
-)
-
-flight_section.add_rule(
-    title = "Airline fare pre-approval check",
-    rule = lambda report, section:
-    return section.fields.fare < 500
-    , 
-    rule_break_text = "Fares cannot be more than $500"
-)
-
-
-
-#### Lodging
-#### Section 2
-lodging_section = Section(
-    title = "Hotel Info",
-    html_description = "<p>Enter hotel info here.\nPer diem rates can be found at <a href='https://www.gsa.gov/travel/plan-book/per-diem-rates'></a></p>",
-    fields = {
-    "check-in_date": {"label": "Check-in date", "type": "date"},
-    "check-out_date": {"label": "Check-out date", "type": "date"},
-    "rate": {"label": "Per diem nightly rate", "type": "decimal"},
-    "cost": {"label": "Total Cost", "type": "decimal"}
-    }
-)
-
-section.add_rule(
-    title = "",
-    rule = lambda report, section:
-    check-in_date = date(section.fields.check-in_date)
-    check-out_date = date(section.fields.check-out_date)
-    duration = check-out_date - check-in_date
-    return section.fields.cost <= duration * section.fields.rate
-    ,
-    rule_break_text = "The average nightly rate cannot be more than the USGSA rate."
-)
-
-
-
-
-#### Local Transportation
-#### Section 3
-transport_section = Section(
-    title = "Local Transportation",
-    html_description = "<p>How much did you spend on local transportation, in total?</p>",
-    fields = {
-    "duration": {"label": "How many days was your trip?", "type": "decimal"},
-    "cost": {"label": "Total cost", "type": "decimal"}
-    }
-)
-
-transport_section.add_rule(
-    title = "Total cost check",
-    rule = lambda report, section:
-    return section.fields.cost <= section.fields.duration * 10
-    ,
-    rule_break_text = "Local transportation costs must be less than $10 per day, on average."
-)
-
-
-
-
-#### Per Diem
-#### Section 4
-per_diem_section = Section(
-    title = "Per Diem",
-    html_description = "<p>Enter info about meals and incidentals here.\nPer diem rates can be found at <a href='https://www.gsa.gov/travel/plan-book/per-diem-rates'></a></p>",
-    fields = {
-    "duration": {"label": "How many days was your trip?", "type": "decimal"},
-    "rate": {"label": "What is the per diem rate for your destination?", "type": "decimal"},
-    "cost": {"label": "Total Cost for meals and incidentals", "type": "decimal"}
-    }
-)
-
-per_diem_section.add_rule(
-    title = "Per Diem Cost Check",
-    rule = lambda report, section:
-    return section.fields.cost <= section.fields.duration * section.fields.rate
-    ,
-    rule_break_text = "The average cost per day for per diem expenses cannot be more than the rate specified by the USGSA."
-)
-
-
-
-'''
-Section(
-    title = "",
-    html_description = "<p></p>",
-    fields = {
-    "": {"label": "", "type": ""}
-    }
-)
-
-section.add_rule(
-    title = "",
-    rule = lambda report, section: return boolean_statement,  
-    rule_break_text = ""
-)
-
-#// or, for a rule which doesn’t apply to a specific section...
-#//
-#// add_general_rule(...) 
-'''