diff --git a/homecoming/apps/announcements/forms.py b/homecoming/apps/announcements/forms.py
index cd16acb..6f1845d 100644
--- a/homecoming/apps/announcements/forms.py
+++ b/homecoming/apps/announcements/forms.py
@@ -26,9 +26,9 @@ def __init__(self, user, *args, **kwargs):
         super().__init__(*args, **kwargs)
 
         if not user.has_management_permission:
-            self.fields["class_group"].queryset = self.fields["class_group"].queryset.filter(
-                id=user.class_group.id
-            )
+            self.fields["class_group"].queryset = self.fields[
+                "class_group"
+            ].queryset.filter(id=user.class_group.id)
 
     def clean(self):
         cleaned_data = self.cleaned_data
diff --git a/homecoming/apps/announcements/migrations/0001_initial.py b/homecoming/apps/announcements/migrations/0001_initial.py
index f1271ca..3c8d13a 100644
--- a/homecoming/apps/announcements/migrations/0001_initial.py
+++ b/homecoming/apps/announcements/migrations/0001_initial.py
@@ -9,22 +9,37 @@ class Migration(migrations.Migration):
     initial = True
 
     dependencies = [
-        ('authentication', '0004_user_is_hoco_admin'),
+        ("authentication", "0004_user_is_hoco_admin"),
     ]
 
     operations = [
         migrations.CreateModel(
-            name='Announcement',
+            name="Announcement",
             fields=[
-                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
-                ('name', models.CharField(max_length=128)),
-                ('description', models.TextField(max_length=48000)),
-                ('start_time', models.DateTimeField()),
-                ('end_time', models.DateTimeField()),
-                ('class_group', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='announcements', to='authentication.classgroup')),
+                (
+                    "id",
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("name", models.CharField(max_length=128)),
+                ("description", models.TextField(max_length=48000)),
+                ("start_time", models.DateTimeField()),
+                ("end_time", models.DateTimeField()),
+                (
+                    "class_group",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="announcements",
+                        to="authentication.classgroup",
+                    ),
+                ),
             ],
             options={
-                'ordering': ('start_time',),
+                "ordering": ("start_time",),
             },
         ),
     ]
diff --git a/homecoming/apps/announcements/urls.py b/homecoming/apps/announcements/urls.py
index e4f12a4..1ff4e95 100644
--- a/homecoming/apps/announcements/urls.py
+++ b/homecoming/apps/announcements/urls.py
@@ -7,7 +7,11 @@
 
 urlpatterns = [
     path("create/", views.create_announcement_view, name="create_announcement_page"),
-    path("edit/<int:announcement_id>/", views.edit_announcement_view, name="edit_announcement"),
+    path(
+        "edit/<int:announcement_id>/",
+        views.edit_announcement_view,
+        name="edit_announcement",
+    ),
     path(
         "delete/<int:pk>",
         management_or_class_group_admin_only(views.DeleteAnnouncementView.as_view()),
diff --git a/homecoming/apps/announcements/views.py b/homecoming/apps/announcements/views.py
index 010d79c..54670e3 100644
--- a/homecoming/apps/announcements/views.py
+++ b/homecoming/apps/announcements/views.py
@@ -2,14 +2,12 @@
 
 from django import http
 from django.contrib import messages
-from django.contrib.auth.decorators import login_required
-from django.http import HttpRequest, HttpResponse, JsonResponse
-from django.shortcuts import redirect, render, get_object_or_404
+from django.http import HttpRequest, HttpResponse
+from django.shortcuts import get_object_or_404, redirect, render
 from django.urls import reverse, reverse_lazy
 from django.views.generic.edit import DeleteView
 
-from ..auth.decorators import management_only, management_or_class_group_admin_only
-from ..scores.models import ScoreBoard
+from ..auth.decorators import management_or_class_group_admin_only
 from .forms import AnnouncementForm
 from .models import Announcement
 
@@ -83,7 +81,9 @@ def edit_announcement_view(request: HttpRequest, announcement_id: int) -> HttpRe
         raise http.Http404
 
     if request.method == "POST":
-        form = AnnouncementForm(data=request.POST, instance=announcement, user=request.user)
+        form = AnnouncementForm(
+            data=request.POST, instance=announcement, user=request.user
+        )
         if form.is_valid():
             form.save()
             messages.info(request, "Announcement edited!")
@@ -92,7 +92,9 @@ def edit_announcement_view(request: HttpRequest, announcement_id: int) -> HttpRe
         form = AnnouncementForm(instance=announcement, user=request.user)
 
     return render(
-        request, "announcements/announcement_form.html", {"form": form, "id": announcement_id}
+        request,
+        "announcements/announcement_form.html",
+        {"form": form, "id": announcement_id},
     )
 
 
diff --git a/homecoming/apps/auth/admin.py b/homecoming/apps/auth/admin.py
index fc18dfd..c02dcde 100644
--- a/homecoming/apps/auth/admin.py
+++ b/homecoming/apps/auth/admin.py
@@ -1,6 +1,6 @@
 from django.contrib import admin
 
-from .models import User, ClassGroup
+from .models import ClassGroup, User
 
 admin.site.register(User)
 admin.site.register(ClassGroup)
diff --git a/homecoming/apps/auth/decorators.py b/homecoming/apps/auth/decorators.py
index bf9bb4e..6994a60 100644
--- a/homecoming/apps/auth/decorators.py
+++ b/homecoming/apps/auth/decorators.py
@@ -5,5 +5,6 @@
 )
 
 management_or_class_group_admin_only = user_passes_test(
-    lambda u: u.is_authenticated and (u.has_management_permission or u.is_class_group_admin)
+    lambda u: u.is_authenticated
+    and (u.has_management_permission or u.is_class_group_admin)
 )
diff --git a/homecoming/apps/auth/forms.py b/homecoming/apps/auth/forms.py
index caaf204..3696692 100644
--- a/homecoming/apps/auth/forms.py
+++ b/homecoming/apps/auth/forms.py
@@ -1,7 +1,6 @@
 import bleach
 
 from django import forms
-from django.core.exceptions import ValidationError
 
 from .models import ClassGroup
 
diff --git a/homecoming/apps/auth/migrations/0003_auto_20230901_1648.py b/homecoming/apps/auth/migrations/0003_auto_20230901_1648.py
index b4fcc02..5ca90af 100644
--- a/homecoming/apps/auth/migrations/0003_auto_20230901_1648.py
+++ b/homecoming/apps/auth/migrations/0003_auto_20230901_1648.py
@@ -6,22 +6,30 @@
 class Migration(migrations.Migration):
 
     dependencies = [
-        ('authentication', '0002_auto_20201107_1851'),
+        ("authentication", "0002_auto_20201107_1851"),
     ]
 
     operations = [
         migrations.CreateModel(
-            name='ClassGroup',
+            name="ClassGroup",
             fields=[
-                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
-                ('name', models.CharField(max_length=128)),
-                ('username_prefix', models.CharField(max_length=4)),
-                ('message', models.TextField(blank=True, max_length=48000, null=True)),
+                (
+                    "id",
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("name", models.CharField(max_length=128)),
+                ("username_prefix", models.CharField(max_length=4)),
+                ("message", models.TextField(blank=True, max_length=48000, null=True)),
             ],
         ),
         migrations.AddField(
-            model_name='user',
-            name='is_class_group_admin',
+            model_name="user",
+            name="is_class_group_admin",
             field=models.BooleanField(default=False),
         ),
     ]
diff --git a/homecoming/apps/auth/migrations/0004_user_is_hoco_admin.py b/homecoming/apps/auth/migrations/0004_user_is_hoco_admin.py
index 9ecd3e8..5ae192a 100644
--- a/homecoming/apps/auth/migrations/0004_user_is_hoco_admin.py
+++ b/homecoming/apps/auth/migrations/0004_user_is_hoco_admin.py
@@ -6,13 +6,13 @@
 class Migration(migrations.Migration):
 
     dependencies = [
-        ('authentication', '0003_auto_20230901_1648'),
+        ("authentication", "0003_auto_20230901_1648"),
     ]
 
     operations = [
         migrations.AddField(
-            model_name='user',
-            name='is_hoco_admin',
+            model_name="user",
+            name="is_hoco_admin",
             field=models.BooleanField(default=False),
         ),
     ]
diff --git a/homecoming/apps/auth/models.py b/homecoming/apps/auth/models.py
index 4f19ddd..48d0be4 100644
--- a/homecoming/apps/auth/models.py
+++ b/homecoming/apps/auth/models.py
@@ -20,7 +20,9 @@ def class_group(self):
 
     @property
     def has_management_permission(self) -> bool:
-        return self.is_hoco_admin or self.is_teacher or self.is_staff or self.is_superuser
+        return (
+            self.is_hoco_admin or self.is_teacher or self.is_staff or self.is_superuser
+        )
 
     @property
     def short_name(self):
@@ -40,8 +42,6 @@ class ClassGroup(models.Model):
     message = models.TextField(max_length=48000, blank=True, null=True)
 
     def has_user(self, user: User) -> bool:
-        if self.username_prefix == "_":
-            return True
         return user.username.startswith(self.username_prefix)
 
     def __str__(self):
diff --git a/homecoming/apps/auth/views.py b/homecoming/apps/auth/views.py
index 9c9efdc..f7de1dd 100644
--- a/homecoming/apps/auth/views.py
+++ b/homecoming/apps/auth/views.py
@@ -1,14 +1,12 @@
 from django import http
 from django.contrib import messages
-from django.contrib.auth.decorators import login_required
-from django.http import HttpRequest, HttpResponse, JsonResponse
-from django.shortcuts import redirect, render, get_object_or_404
-from django.urls import reverse, reverse_lazy
-from django.views.generic.edit import DeleteView
+from django.http import HttpRequest, HttpResponse
+from django.shortcuts import get_object_or_404, redirect, render
+from django.urls import reverse
 
 from .decorators import management_or_class_group_admin_only
-from .models import ClassGroup
 from .forms import ClassGroupForm
+from .models import ClassGroup
 
 
 def login(request: HttpRequest) -> HttpResponse:
@@ -35,4 +33,6 @@ def edit_class_group_view(request: HttpRequest, class_group_id: int) -> HttpResp
     else:
         form = ClassGroupForm(instance=class_group)
 
-    return render(request, "auth/class_group_form.html", {"form": form, "id": class_group_id})
+    return render(
+        request, "auth/class_group_form.html", {"form": form, "id": class_group_id}
+    )
diff --git a/homecoming/apps/base/views.py b/homecoming/apps/base/views.py
index 901ce52..605304c 100644
--- a/homecoming/apps/base/views.py
+++ b/homecoming/apps/base/views.py
@@ -1,5 +1,3 @@
-import datetime
-
 from django.contrib import messages
 from django.contrib.auth.decorators import login_required
 from django.db.models import Sum
@@ -8,9 +6,9 @@
 from django.urls import reverse
 from django.utils import timezone
 
+from ..announcements.models import Announcement
 from ..auth.decorators import management_only
 from ..auth.models import ClassGroup
-from ..announcements.models import Announcement
 from ..events.models import Event
 from ..scores.models import ScoreBoard
 
@@ -18,9 +16,15 @@
 @login_required
 def index_view(request: HttpRequest) -> HttpResponse:
     # Combine class group announcements and global announcements
-    all_announcements = request.user.class_group.announcements.all() | Announcement.objects.filter(
-        class_group__username_prefix="_"
-    )
+    if request.user.class_group:
+        all_announcements = (
+            request.user.class_group.announcements.all()
+            | Announcement.objects.filter(class_group__username_prefix="_")
+        )
+    else:
+        all_announcements = Announcement.objects.filter(
+            class_group__username_prefix="_"
+        )
     announcements = (
         all_announcements.filter(end_time__gte=timezone.now())
         .filter(start_time__lte=timezone.now())
@@ -38,8 +42,12 @@ def index_view(request: HttpRequest) -> HttpResponse:
         "sophomore_total": ScoreBoard.objects.aggregate(Sum("sophomore_score"))[
             "sophomore_score__sum"
         ],
-        "junior_total": ScoreBoard.objects.aggregate(Sum("junior_score"))["junior_score__sum"],
-        "senior_total": ScoreBoard.objects.aggregate(Sum("senior_score"))["senior_score__sum"],
+        "junior_total": ScoreBoard.objects.aggregate(Sum("junior_score"))[
+            "junior_score__sum"
+        ],
+        "senior_total": ScoreBoard.objects.aggregate(Sum("senior_score"))[
+            "senior_score__sum"
+        ],
     }
 
     if ClassGroup.objects.filter(username_prefix="_").exists():
@@ -59,8 +67,12 @@ def api_view(request: HttpRequest) -> JsonResponse:
         "sophomore_total": ScoreBoard.objects.aggregate(Sum("sophomore_score"))[
             "sophomore_score__sum"
         ],
-        "junior_total": ScoreBoard.objects.aggregate(Sum("junior_score"))["junior_score__sum"],
-        "senior_total": ScoreBoard.objects.aggregate(Sum("senior_score"))["senior_score__sum"],
+        "junior_total": ScoreBoard.objects.aggregate(Sum("junior_score"))[
+            "junior_score__sum"
+        ],
+        "senior_total": ScoreBoard.objects.aggregate(Sum("senior_score"))[
+            "senior_score__sum"
+        ],
     }
     resp = JsonResponse(context)
     resp["Access-Control-Allow-Origin"] = "*"
diff --git a/homecoming/apps/scores/migrations/0003_scoreboard_staff_score.py b/homecoming/apps/scores/migrations/0003_scoreboard_staff_score.py
index 4c6265b..660bb30 100644
--- a/homecoming/apps/scores/migrations/0003_scoreboard_staff_score.py
+++ b/homecoming/apps/scores/migrations/0003_scoreboard_staff_score.py
@@ -6,13 +6,13 @@
 class Migration(migrations.Migration):
 
     dependencies = [
-        ('scores', '0002_auto_20200715_2206'),
+        ("scores", "0002_auto_20200715_2206"),
     ]
 
     operations = [
         migrations.AddField(
-            model_name='scoreboard',
-            name='staff_score',
+            model_name="scoreboard",
+            name="staff_score",
             field=models.IntegerField(default=0),
         ),
     ]
diff --git a/homecoming/apps/scores/migrations/0004_remove_scoreboard_staff_score.py b/homecoming/apps/scores/migrations/0004_remove_scoreboard_staff_score.py
index 93330ef..464abaa 100644
--- a/homecoming/apps/scores/migrations/0004_remove_scoreboard_staff_score.py
+++ b/homecoming/apps/scores/migrations/0004_remove_scoreboard_staff_score.py
@@ -6,12 +6,12 @@
 class Migration(migrations.Migration):
 
     dependencies = [
-        ('scores', '0003_scoreboard_staff_score'),
+        ("scores", "0003_scoreboard_staff_score"),
     ]
 
     operations = [
         migrations.RemoveField(
-            model_name='scoreboard',
-            name='staff_score',
+            model_name="scoreboard",
+            name="staff_score",
         ),
     ]
diff --git a/homecoming/settings/__init__.py b/homecoming/settings/__init__.py
index 7968766..42d04bc 100644
--- a/homecoming/settings/__init__.py
+++ b/homecoming/settings/__init__.py
@@ -67,7 +67,9 @@
 }
 
 AUTH_PASSWORD_VALIDATORS = [
-    {"NAME": "django.contrib.auth.password_validation.UserAttributeSimilarityValidator"},
+    {
+        "NAME": "django.contrib.auth.password_validation.UserAttributeSimilarityValidator"
+    },
     {"NAME": "django.contrib.auth.password_validation.MinimumLengthValidator"},
     {"NAME": "django.contrib.auth.password_validation.CommonPasswordValidator"},
     {"NAME": "django.contrib.auth.password_validation.NumericPasswordValidator"},
diff --git a/homecoming/templates/base/home.html b/homecoming/templates/base/home.html
index 5b5eacc..bf9a2b3 100644
--- a/homecoming/templates/base/home.html
+++ b/homecoming/templates/base/home.html
@@ -108,14 +108,14 @@ <h2>Scoreboard</h2>
             </div>
         </div>
     </div>
-    {% if class_group %}
+    {% if class_group or global_group %}
         <div class="announcements">
             <h2>Class Announcements</h2>
             {% if global_group %}
                 <div class="panel-wide">
                     <div class="panel-heading">
                         <h3>
-                            {% if user|has_management_permissions or user.is_class_group_admin %}
+                            {% if user|has_management_permissions %}
                                 <a href="{% url 'auth:edit_class_group' global_group.id %}" class="can-edit" style="color: white">{{ global_group.name }}</a>
                             {% else %}
                                 {{ global_group.name }}
@@ -127,25 +127,27 @@ <h3>
                     </div>
                 </div>
             {% endif %}
-            <div class="panel-wide">
-                <div class="panel-heading">
-                    <h3>
-                        {% if user|has_management_permissions or user.is_class_group_admin %}
-                            <a href="{% url 'auth:edit_class_group' class_group.id %}" class="can-edit" style="color: white">{{ class_group.name }}</a>
-                        {% else %}
-                            {{ class_group.name }}
-                        {% endif %}
-                    </h3>
-                </div>
-                <div class="panel-body">
-                    {{ class_group.message|safe }}
+            {% if class_group %}
+                <div class="panel-wide">
+                    <div class="panel-heading">
+                        <h3>
+                            {% if user|has_management_permissions or user.is_class_group_admin %}
+                                <a href="{% url 'auth:edit_class_group' class_group.id %}" class="can-edit" style="color: white">{{ class_group.name }}</a>
+                            {% else %}
+                                {{ class_group.name }}
+                            {% endif %}
+                        </h3>
+                    </div>
+                    <div class="panel-body">
+                        {{ class_group.message|safe }}
+                    </div>
                 </div>
-            </div>
+            {% endif %}
             {% for announcement in announcements %}
                 <div class="panel-wide">
                     <div class="panel-heading">
                         <h3>
-                            {% if user|has_management_permissions or user.is_class_group_admin %}
+                            {% if user|has_management_permissions or user.is_class_group_admin and announcement.class_group.username_prefix != "_" %}
                                 <a href="{% url 'announcements:edit_announcement' announcement.id %}" class="can-edit" style="color: white">{{ announcement.name }}</a>
                             {% else %}
                                 {{ announcement.name }}
diff --git a/homecoming/urls.py b/homecoming/urls.py
index 1aedf12..41fd3a0 100644
--- a/homecoming/urls.py
+++ b/homecoming/urls.py
@@ -5,7 +5,8 @@
     path("admin/", admin.site.urls),
     path("oauth/", include("social_django.urls", namespace="social")),
     path(
-        "announcements/", include("homecoming.apps.announcements.urls", namespace="announcements")
+        "announcements/",
+        include("homecoming.apps.announcements.urls", namespace="announcements"),
     ),
     path("", include("homecoming.apps.auth.urls", namespace="auth")),
     path("", include("homecoming.apps.base.urls", namespace="base")),