diff --git a/app/controllers/admin/archivematica_accessions_controller.rb b/app/controllers/admin/archivematica_accessions_controller.rb
index 559b7940..ee8795e4 100644
--- a/app/controllers/admin/archivematica_accessions_controller.rb
+++ b/app/controllers/admin/archivematica_accessions_controller.rb
@@ -8,6 +8,13 @@ class ArchivematicaAccessionsController < Admin::ApplicationController
     #   send_foo_updated_email(requested_resource)
     # end
 
+    def new
+      resource = ArchivematicaAccession.new(degree_period_id: params[:degree_period_id])
+      render locals: {
+        page: Administrate::Page::Form.new(dashboard, resource)
+      }
+    end
+
     # Override this method to specify custom lookup behavior.
     # This will be used to set the resource for the `show`, `edit`, and `update`
     # actions.
diff --git a/app/models/thesis.rb b/app/models/thesis.rb
index 18826619..ecd64ea7 100644
--- a/app/models/thesis.rb
+++ b/app/models/thesis.rb
@@ -146,6 +146,19 @@ class Thesis < ApplicationRecord
 
   enum proquest_exported: ['Not exported', 'Full harvest', 'Partial harvest']
 
+  # Looks up the thesis' accession number based on its degree period.
+  def accession_number
+    degree_period = look_up_degree_period
+    return if degree_period.nil?
+    return if degree_period.archivematica_accession.nil?
+
+    degree_period.archivematica_accession.accession_number
+  end
+
+  def look_up_degree_period
+    DegreePeriod.find_by(grad_year: graduation_year, grad_month: graduation_month)
+  end
+
   # Returns a true/false value (rendered as "yes" or "no") if there are any
   # holds with a status of either 'active' or 'expired'. A false/"No" is
   # only returned if all holds are 'released'.
@@ -189,7 +202,8 @@ def evaluate_status
       no_active_holds?,
       authors_graduated?,
       departments_have_dspace_name?,
-      degrees_have_types?
+      degrees_have_types?,
+      accession_number.present?
     ].all?
   end
 
diff --git a/app/views/thesis/process_theses.html.erb b/app/views/thesis/process_theses.html.erb
index 5dc33e59..d4cc6482 100644
--- a/app/views/thesis/process_theses.html.erb
+++ b/app/views/thesis/process_theses.html.erb
@@ -47,6 +47,14 @@
                                         hint_html: { style: 'display: block' },
                                         hint: link_to('See details in admin interface', admin_thesis_path(f.object), target: :_blank) %>
           </li>
+          <li>
+            <%= f.input :accession_number?, as: :string,
+                                        readonly: true,
+                                        label_html: { style: 'width: 50%' },
+                                        input_html: { class: 'disabled', style: 'width: 40%', value: f.object.accession_number.present?? 'Yes' : 'No' },
+                                        hint_html: { style: 'display: block' },
+                                        hint: (link_to('Create new accession number', new_admin_archivematica_accession_path(degree_period_id: f.object.look_up_degree_period), target: :_blank) if f.object.accession_number.nil?) %>
+          </li>
           <li>
             <fieldset>
               <legend>Issues found</legend>
diff --git a/test/fixtures/archivematica_accessions.yml b/test/fixtures/archivematica_accessions.yml
index fe355190..a38e55ee 100644
--- a/test/fixtures/archivematica_accessions.yml
+++ b/test/fixtures/archivematica_accessions.yml
@@ -16,3 +16,15 @@
 valid_number_and_degree_period:
   accession_number: '2023_001'
   degree_period: june_2023
+
+september_2017_001:
+  accession_number: '2017_001'
+  degree_period: september_2017
+
+june_2018_001:
+  accession_number: '2018_001'
+  degree_period: june_2018
+
+june_2021_001:
+  accession_number: '2021_001'
+  degree_period: june_2021
diff --git a/test/fixtures/degree_periods.yml b/test/fixtures/degree_periods.yml
index 4e71b5e8..ce4e81eb 100644
--- a/test/fixtures/degree_periods.yml
+++ b/test/fixtures/degree_periods.yml
@@ -16,3 +16,15 @@ june_2023:
 no_archivematica_accessions:
   grad_month: 'May'
   grad_year: '2024'
+
+september_2017:
+  grad_month: 'September'
+  grad_year: '2017'
+
+june_2018:
+  grad_month: 'June'
+  grad_year: '2018'
+
+june_2021:
+  grad_month: 'June'
+  grad_year: '2021'
diff --git a/test/integration/admin/admin_archivematica_accession_test.rb b/test/integration/admin/admin_archivematica_accession_test.rb
index 60c0bd30..608f8f37 100644
--- a/test/integration/admin/admin_archivematica_accession_test.rb
+++ b/test/integration/admin/admin_archivematica_accession_test.rb
@@ -115,4 +115,18 @@ def teardown
     delete admin_archivematica_accession_path(archivematica_accession)
     assert_not ArchivematicaAccession.exists?(archivematica_accession_id)
   end
+
+  test 'new form can be prefilled with degree period' do
+    mock_auth users(:thesis_admin)
+    get new_admin_archivematica_accession_path, params: { degree_period_id: degree_periods(:june_2023).id }
+    assert_select 'select#archivematica_accession_degree_period_id', count: 1
+    assert_select 'option', text: 'June 2023', count: 1
+  end
+
+  test 'new form can be loaded with no prefilled degree period' do
+    mock_auth users(:thesis_admin)
+    get new_admin_archivematica_accession_path
+    assert_select 'select#archivematica_accession_degree_period_id', count: 1
+    assert_select 'option', text: '', count: 1
+  end
 end
diff --git a/test/models/thesis_test.rb b/test/models/thesis_test.rb
index aa251a3c..2987dbc5 100644
--- a/test/models/thesis_test.rb
+++ b/test/models/thesis_test.rb
@@ -610,6 +610,7 @@ def attach_file_with_purpose_to(thesis, purpose = 'thesis_pdf')
     assert_equal true, thesis.no_active_holds?
     assert_equal true, thesis.departments_have_dspace_name?
     assert_equal true, thesis.degrees_have_types?
+    assert_equal true, thesis.accession_number.present?
     assert_equal 'Publication review', thesis.publication_status
     # Attempting to set a different status will be overwritten by the update_status method
     thesis.publication_status = 'Not ready for publication'
@@ -1442,4 +1443,80 @@ def attach_file_with_purpose_to(thesis, purpose = 'thesis_pdf')
     assert_not_includes Thesis.ready_for_proquest_export, wrong_term_full_export_thesis
     assert_not_includes Thesis.ready_for_proquest_export, no_export_thesis
   end
+
+  test 'can look up accession number' do
+    t = theses(:one)
+
+    # a thesis needs a grad date to have an accession number
+    assert_not t.grad_date.nil?
+    assert_not t.accession_number.nil?
+  end
+
+  test 'accession number matches expectations' do
+    t = theses(:one)
+    assert t.accession_number.starts_with? t.graduation_year
+  end
+
+  test 'can look up degree period' do
+    thesis = theses(:one)
+
+    # Ensure the thesis has a degree period
+    assert_not_nil DegreePeriod.find_by(grad_year: thesis.graduation_year, grad_month: thesis.graduation_month)
+
+    # Ensure that degree period lookup returns the appropriate record
+    degree_period = thesis.look_up_degree_period
+    assert_equal thesis.graduation_year, degree_period.grad_year
+    assert_equal thesis.graduation_month, degree_period.grad_month
+  end
+
+  test 'returns nil on degree period lookup if no degree period exists' do
+    thesis = theses(:one)
+
+    # Ensure the thesis has no degree period
+    thesis.graduation_year = '3000'
+    thesis.save
+    assert_nil DegreePeriod.find_by(grad_year: thesis.graduation_year, grad_month: thesis.graduation_month)
+
+    # Ensure that degree period lookup also returns nil
+    assert_nil thesis.look_up_degree_period
+  end
+
+  test 'bachelor theses cannot be put into publication review without accession number' do
+    t = theses(:bachelor)
+    t.save
+    t.reload
+    assert_equal 'Publication review', t.publication_status
+
+    t.graduation_year = '3000'
+    t.save
+    t.reload
+    assert_nil t.accession_number
+    assert_not_equal 'Publication review', t.publication_status
+  end
+
+  test 'master theses cannot be put into publication review without an accession number' do
+    t = theses(:master)
+    t.save
+    t.reload
+    assert_equal 'Publication review', t.publication_status
+
+    t.graduation_year = '3000'
+    t.save
+    t.reload
+    assert_nil t.accession_number
+    assert_not_equal 'Publication review', t.publication_status
+  end
+
+  test 'doctoral theses cannot be put into publication review without an accession number' do
+    t = theses(:doctor)
+    t.save
+    t.reload
+    assert_equal 'Publication review', t.publication_status
+
+    t.graduation_year = '3000'
+    t.save
+    t.reload
+    assert_nil t.accession_number
+    assert_not_equal 'Publication review', t.publication_status
+  end
 end