diff --git a/PERMISSIONS.md b/PERMISSIONS.md
index f5d9fee8..0072bd2f 100644
--- a/PERMISSIONS.md
+++ b/PERMISSIONS.md
@@ -20,4 +20,4 @@ When the user has the read permission it is able to get all groups (as always).
 
 ### Activity/Article/Photo
 #### Unauthenticated and without permission
-When not logged in or when without permission it is possible to get activities, articles and photos which have the publicly visible property to true.
+When not logged in or when without permission it is possible to get activities, articles and photos which have the visibility property to public.
diff --git a/app/controllers/v1/photos_controller.rb b/app/controllers/v1/photos_controller.rb
index 76df8ee2..aaba56c8 100644
--- a/app/controllers/v1/photos_controller.rb
+++ b/app/controllers/v1/photos_controller.rb
@@ -1,8 +1,2 @@
 class V1::PhotosController < V1::ApplicationController
-  before_action :doorkeeper_authorize!, except: %i[index show get_related_resources]
-  before_action do
-    doorkeeper_authorize! unless %w[index show].include?(action_name) ||
-                                 (action_name == 'get_related_resources' &&
-                                  params[:source] == 'v1/photo_albums')
-  end
 end
diff --git a/app/models/photo.rb b/app/models/photo.rb
index b39582cc..ad13120e 100644
--- a/app/models/photo.rb
+++ b/app/models/photo.rb
@@ -21,12 +21,16 @@ class Photo < ApplicationRecord
     joins(:comments).distinct
   }
 
-  scope :with_tags, lambda {
-    joins(:tags).distinct
+  scope :alumni_visible, lambda { |start_date, end_date|
+    joins(:photo_album)
+      .where(photo_albums: { visibility: 'alumni' })
+      .or(photo_albums: { visibility: 'public' })
+      .or(where.not(photo_albums: { date: nil }).where(photo_albums: { date: start_date..end_date }))
+      .or(where(photo_albums: { date: nil }).where(photo_albums: { created_at: start_date..end_date }))
   }
 
-  scope :publicly_visible, lambda {
-    joins(:photo_album).where(photo_albums: { publicly_visible: true })
+  scope :with_tags, lambda {
+    joins(:tags).distinct
   }
 
   before_save :extract_exif
diff --git a/app/models/photo_album.rb b/app/models/photo_album.rb
index 549edf48..5c38b9c3 100644
--- a/app/models/photo_album.rb
+++ b/app/models/photo_album.rb
@@ -7,10 +7,18 @@ class PhotoAlbum < ApplicationRecord
   belongs_to :group, optional: true
 
   validates :title, presence: true
-  validates :publicly_visible, inclusion: [true, false]
-
-  scope :publicly_visible, -> { where(publicly_visible: true) }
+  validates :visibility, inclusion: { in: %w[public alumni members] }
 
+  scope :publicly_visible, lambda {
+    joins(:photo_album).where(photo_albums: { visibility: 'public' })
+  }
+  scope :alumni_visible, lambda { |start_date, end_date|
+    joins(:photo_album)
+      .where(photo_albums: { visibility: 'alumni' })
+      .or(photo_albums: { visibility: 'public' })
+      .or(where.not(date: nil).where(date: start_date..end_date))
+      .or(where(date: nil).where(created_at: start_date..end_date))
+  }
   scope :without_photo_tags, lambda {
     where.not(id: Photo.joins(:tags).select(:photo_album_id).distinct)
   }
diff --git a/app/models/photo_comment.rb b/app/models/photo_comment.rb
index 642d613f..2eb3e6e8 100644
--- a/app/models/photo_comment.rb
+++ b/app/models/photo_comment.rb
@@ -6,8 +6,11 @@ class PhotoComment < ApplicationRecord
 
   validates :content, presence: true, length: { minimum: 1, maximum: 500 }
 
-  scope :publicly_visible, lambda {
+  scope :alumni_visible, lambda { |start_date, end_date|
     joins(photo: :photo_album)
-      .where(photo_albums: { publicly_visible: true })
+      .where(photo_albums: { visibility: 'alumni' })
+      .or(photo_albums: { visibility: 'public' })
+      .or(where.not(photo_albums: { date: nil }).where(photo_albums: { date: start_date..end_date }))
+      .or(where(photo_albums: { date: nil }).where(photo_albums: { created_at: start_date..end_date }))
   }
 end
diff --git a/app/policies/photo_album_policy.rb b/app/policies/photo_album_policy.rb
index f54a4e16..7ecaaf1b 100644
--- a/app/policies/photo_album_policy.rb
+++ b/app/policies/photo_album_policy.rb
@@ -1,8 +1,14 @@
 class PhotoAlbumPolicy < ApplicationPolicy
   class Scope < ApplicationPolicy::Scope
-    def resolve
+    def resolve # rubocop:disable Metrics/AbcSize
       if user_can_read?
-        scope
+        membership = user.memberships.joins(:group).where(groups: { name: 'Leden' }).first
+        return scope.publicly_visible if membership.nil?
+
+        scope.alumni_visible(
+          membership.start_date&.advance(months: -18),
+          membership.end_date&.advance(months: 6)
+        )
       else
         scope.publicly_visible
       end
diff --git a/app/policies/photo_comment_policy.rb b/app/policies/photo_comment_policy.rb
index b3322463..fbcc4c89 100644
--- a/app/policies/photo_comment_policy.rb
+++ b/app/policies/photo_comment_policy.rb
@@ -2,9 +2,13 @@ class PhotoCommentPolicy < ApplicationPolicy
   class Scope < ApplicationPolicy::Scope
     def resolve
       if user_can_read?
-        scope
-      else
-        scope.publicly_visible
+        membership = user.memberships.joins(:group).where(groups: { name: 'Leden' }).first
+        return if membership.nil?
+
+        scope.alumni_visible(
+          membership.start_date&.advance(months: -18),
+          membership.end_date&.advance(months: 6)
+        )
       end
     end
   end
diff --git a/app/policies/photo_policy.rb b/app/policies/photo_policy.rb
index 751a55ed..5d10b751 100644
--- a/app/policies/photo_policy.rb
+++ b/app/policies/photo_policy.rb
@@ -2,9 +2,13 @@ class PhotoPolicy < ApplicationPolicy
   class Scope < ApplicationPolicy::Scope
     def resolve
       if user_can_read?
-        scope
-      else
-        scope.publicly_visible
+        membership = user.memberships.joins(:group).where(groups: { name: 'Leden' }).first
+        return if membership.nil?
+
+        scope.alumni_visible(
+          membership.start_date&.advance(months: -18),
+          membership.end_date&.advance(months: 6)
+        )
       end
     end
   end
diff --git a/app/resources/v1/photo_album_resource.rb b/app/resources/v1/photo_album_resource.rb
index a79e8910..c616b221 100644
--- a/app/resources/v1/photo_album_resource.rb
+++ b/app/resources/v1/photo_album_resource.rb
@@ -1,5 +1,5 @@
 class V1::PhotoAlbumResource < V1::ApplicationResource
-  attributes :title, :date, :publicly_visible
+  attributes :title, :date, :visibility
 
   filter :without_photo_tags, apply: ->(records, _value, _options) { records.without_photo_tags }
 
@@ -8,7 +8,7 @@ class V1::PhotoAlbumResource < V1::ApplicationResource
   has_one :group, always_include_linkage_data: true
 
   def self.creatable_fields(_context)
-    %i[title date publicly_visible group]
+    %i[title date visibility group]
   end
 
   def self.searchable_fields
diff --git a/db/migrate/20250314221852_alumni_visibility.rb b/db/migrate/20250314221852_alumni_visibility.rb
new file mode 100644
index 00000000..7f92024d
--- /dev/null
+++ b/db/migrate/20250314221852_alumni_visibility.rb
@@ -0,0 +1,21 @@
+class AlumniVisibility < ActiveRecord::Migration[7.0]
+  def up
+    add_column :photo_albums, :visibility, :string, default: 'members'
+
+    PhotoAlbum.find_each do |record|
+      record.update!(visibility: record.publicly_visible ? 'public' : 'members')
+    end
+
+    remove_column :photo_albums, :publicly_visible
+  end
+
+  def down
+    add_column :photo_albums, :publicly_visible, :boolean, default: false, null: false
+
+    PhotoAlbum.find_each do |record|
+      record.update!(publicly_visible: record.visibility == 'public')
+    end
+
+    remove_column :photo_albums, :visibility
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 20015070..e6d40e6c 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.1].define(version: 2025_03_10_235232) do
+ActiveRecord::Schema[7.1].define(version: 2025_03_14_221852) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
 
@@ -411,9 +411,9 @@
     t.datetime "created_at", precision: nil, null: false
     t.datetime "updated_at", precision: nil, null: false
     t.datetime "deleted_at", precision: nil
-    t.boolean "publicly_visible", default: false, null: false
     t.bigint "author_id"
     t.bigint "group_id"
+    t.string "visibility", default: "members"
     t.index ["author_id"], name: "index_photo_albums_on_author_id"
     t.index ["deleted_at"], name: "index_photo_albums_on_deleted_at"
     t.index ["group_id"], name: "index_photo_albums_on_group_id"
diff --git a/spec/models/photo_spec.rb b/spec/models/photo_spec.rb
index e931031b..5ae5f305 100644
--- a/spec/models/photo_spec.rb
+++ b/spec/models/photo_spec.rb
@@ -62,12 +62,13 @@
   end
 
   describe '#publicly_visible' do
-    let(:public_album) { create(:photo_album, publicly_visible: true) }
-    let(:private_album) { create(:photo_album, publicly_visible: false) }
+    let(:public_album) { create(:photo_album, visibility: 'public') }
+    let(:alumni_album) { create(:photo_album, visibility: 'alumni') }
+    let(:private_album) { create(:photo_album, visibility: 'members') }
 
     before do
       create(:photo, photo_album: public_album)
-      create(:photo, photo_album: public_album)
+      create(:photo, photo_album: alumni_album)
       create(:photo, photo_album: private_album)
     end
 
@@ -75,6 +76,21 @@
     it { expect(described_class.count - described_class.publicly_visible.count).to be 1 }
   end
 
+  describe '#alumni_visible' do
+    let(:public_album) { create(:photo_album, visibility: 'public') }
+    let(:alumni_album) { create(:photo_album, visibility: 'alumni') }
+    let(:private_album) { create(:photo_album, visibility: 'members') }
+
+    before do
+      create(:photo, photo_album: public_album)
+      create(:photo, photo_album: alumni_album)
+      create(:photo, photo_album: private_album)
+    end
+
+    it { expect(described_class.alumni_visible.count).to be 2 }
+    it { expect(described_class.count - described_class.alumni_visible.count).to be 1 }
+  end
+
   describe '#extract_exif' do
     subject(:photo) { create(:photo) }
 
diff --git a/spec/support/contexts/requests/when_alumni.rb b/spec/support/contexts/requests/when_alumni.rb
new file mode 100644
index 00000000..fc10e779
--- /dev/null
+++ b/spec/support/contexts/requests/when_alumni.rb
@@ -0,0 +1,10 @@
+shared_context 'when alumni' do
+  let(:user) { create(:user) }
+  let(:group) { create(:group, name: 'Leden') }
+  let(:membership) { create(:membership, user: user, group: group, start_date: 4.years.ago, end_date: 2.years.ago) }
+  let(:access_token) { Doorkeeper::AccessToken.create!(resource_owner_id: user.id) }
+
+  before do
+    header('Authorization', "Bearer #{access_token.plaintext_token}")
+  end
+end
diff --git a/spec/support/contexts/requests/when_member.rb b/spec/support/contexts/requests/when_member.rb
new file mode 100644
index 00000000..09cde513
--- /dev/null
+++ b/spec/support/contexts/requests/when_member.rb
@@ -0,0 +1,10 @@
+shared_context 'when member' do
+  let(:user) { create(:user) }
+  let(:group) { create(:group, name: 'Leden') }
+  let(:membership) { create(:membership, user: user, group: group, start_date: 2.years.ago, end_date: nil) }
+  let(:access_token) { Doorkeeper::AccessToken.create!(resource_owner_id: user.id) }
+
+  before do
+    header('Authorization', "Bearer #{access_token.plaintext_token}")
+  end
+end