diff --git a/netbox_acls/choices.py b/netbox_acls/choices.py
index 8247d45..4b1c5b2 100644
--- a/netbox_acls/choices.py
+++ b/netbox_acls/choices.py
@@ -51,9 +51,12 @@ class ACLAssignmentDirectionChoices(ChoiceSet):
     Defines the direction of the application of the ACL on an associated interface.
     """
 
+    DIRECTION_INGRESS = "ingress"
+    DIRECTION_EGRESS = "egress"
+
     CHOICES = [
-        ("ingress", "Ingress", "blue"),
-        ("egress", "Egress", "purple"),
+        (DIRECTION_INGRESS, "Ingress", "blue"),
+        (DIRECTION_EGRESS, "Egress", "purple"),
     ]
 
 
@@ -62,9 +65,12 @@ class ACLTypeChoices(ChoiceSet):
     Defines the choices availble for the Access Lists plugin specific to ACL type.
     """
 
+    TYPE_STANDARD = "standard"
+    TYPE_EXTENDED = "extended"
+
     CHOICES = [
-        ("extended", "Extended", "purple"),
-        ("standard", "Standard", "blue"),
+        (TYPE_EXTENDED, "Extended", "purple"),
+        (TYPE_STANDARD, "Standard", "blue"),
     ]
 
 
@@ -73,8 +79,12 @@ class ACLProtocolChoices(ChoiceSet):
     Defines the choices availble for the Access Lists plugin specific to ACL Rule protocol.
     """
 
+    PROTOCOL_ICMP = "icmp"
+    PROTOCOL_TCP = "tcp"
+    PROTOCOL_UDP = "udp"
+
     CHOICES = [
-        ("icmp", "ICMP", "purple"),
-        ("tcp", "TCP", "blue"),
-        ("udp", "UDP", "orange"),
+        (PROTOCOL_ICMP, "ICMP", "purple"),
+        (PROTOCOL_TCP, "TCP", "blue"),
+        (PROTOCOL_UDP, "UDP", "orange"),
     ]
diff --git a/netbox_acls/forms/models.py b/netbox_acls/forms/models.py
index a8800e5..0c9b2e5 100644
--- a/netbox_acls/forms/models.py
+++ b/netbox_acls/forms/models.py
@@ -16,6 +16,7 @@ from utilities.forms import (
 )
 from virtualization.models import VirtualMachine, VMInterface
 
+from ..choices import ACLTypeChoices
 from ..models import (
     AccessList,
     ACLExtendedRule,
@@ -201,8 +202,12 @@ class AccessListForm(NetBoxModelForm):
                 "name": [error_same_acl_name],
             }
         # Check if Access List has no existing rules before change the Access List's type.
-        if (acl_type == "extended" and self.instance.aclstandardrules.exists()) or (
-            acl_type == "standard" and self.instance.aclextendedrules.exists()
+        if (
+            acl_type == ACLTypeChoices.TYPE_EXTENDED
+            and self.instance.aclstandardrules.exists()
+        ) or (
+            acl_type == ACLTypeChoices.TYPE_STANDARD
+            and self.instance.aclextendedrules.exists()
         ):
             error_message["type"] = [
                 "This ACL has ACL rules associated, CANNOT change ACL type.",
@@ -425,7 +430,7 @@ class ACLStandardRuleForm(NetBoxModelForm):
     access_list = DynamicModelChoiceField(
         queryset=AccessList.objects.all(),
         query_params={
-            "type": "standard",
+            "type": ACLTypeChoices.TYPE_STANDARD,
         },
         help_text=mark_safe(
             "<b>*Note:</b> This field will only display Standard ACLs.",
@@ -507,7 +512,7 @@ class ACLExtendedRuleForm(NetBoxModelForm):
     access_list = DynamicModelChoiceField(
         queryset=AccessList.objects.all(),
         query_params={
-            "type": "extended",
+            "type": ACLTypeChoices.TYPE_EXTENDED,
         },
         help_text=mark_safe(
             "<b>*Note:</b> This field will only display Extended ACLs.",
diff --git a/netbox_acls/models/access_list_rules.py b/netbox_acls/models/access_list_rules.py
index 2dff662..8b21dde 100644
--- a/netbox_acls/models/access_list_rules.py
+++ b/netbox_acls/models/access_list_rules.py
@@ -8,7 +8,7 @@ from django.db import models
 from django.urls import reverse
 from netbox.models import NetBoxModel
 
-from ..choices import ACLProtocolChoices, ACLRuleActionChoices
+from ..choices import ACLProtocolChoices, ACLRuleActionChoices, ACLTypeChoices
 from .access_lists import AccessList
 
 __all__ = (
@@ -84,7 +84,7 @@ class ACLStandardRule(ACLRule):
         on_delete=models.CASCADE,
         to=AccessList,
         verbose_name="Standard Access List",
-        limit_choices_to={"type": "standard"},
+        limit_choices_to={"type": ACLTypeChoices.TYPE_STANDARD},
         related_name="aclstandardrules",
     )
 
diff --git a/netbox_acls/views.py b/netbox_acls/views.py
index df1eae8..6ed5be9 100644
--- a/netbox_acls/views.py
+++ b/netbox_acls/views.py
@@ -6,7 +6,7 @@ Specifically, all the various interactions with a client.
 from django.db.models import Count
 from netbox.views import generic
 
-from . import filtersets, forms, models, tables
+from . import choices, filtersets, forms, models, tables
 
 __all__ = (
     "AccessListView",
@@ -48,9 +48,10 @@ class AccessListView(generic.ObjectView):
         """
         Depending on the Access List type, the list view will return the required ACL Rule using the previous defined tables in tables.py.
         """
-        if instance.type == "extended":
+
+        if instance.type == choices.ACLTypeChoices.TYPE_EXTENDED:
             table = tables.ACLExtendedRuleTable(instance.aclextendedrules.all())
-        elif instance.type == "standard":
+        elif instance.type == choices.ACLTypeChoices.TYPE_STANDARD:
             table = tables.ACLStandardRuleTable(instance.aclstandardrules.all())
         table.configure(request)