diff --git a/app/assets/javascripts/protocols/index.js b/app/assets/javascripts/protocols/index.js
index 921cf04de..71dc3f8be 100644
--- a/app/assets/javascripts/protocols/index.js
+++ b/app/assets/javascripts/protocols/index.js
@@ -53,7 +53,7 @@ function initProtocolsTable() {
                 </div>`;
       }
     }, {
-      targets: [ 1, 2, 3, 4, 5 ],
+      targets: [ 1, 2, 3, 4, 5, 6 ],
       searchable: true,
       orderable: true
     }],
@@ -61,13 +61,14 @@ function initProtocolsTable() {
       { data: "0" },
       { data: "1" },
       { data: "2" },
+      { data: "3" },
       {
-        data: "3",
+        data: "4",
         visible: repositoryType != "archive"
       },
-      { data: "4" },
       { data: "5" },
-      { data: "6" }
+      { data: "6" },
+      { data: "7" }
     ],
     oLanguage: {
       sSearch: I18n.t('general.filter')
diff --git a/app/datatables/protocols_datatable.rb b/app/datatables/protocols_datatable.rb
index 5f4294b8b..6c9f1f48e 100644
--- a/app/datatables/protocols_datatable.rb
+++ b/app/datatables/protocols_datatable.rb
@@ -23,6 +23,7 @@ class ProtocolsDatatable < CustomDatatable
   def sortable_columns
     @sortable_columns ||= [
       "Protocol.name",
+      "Protocol.id",
       "protocol_keywords_str",
       "Protocol.nr_of_linked_children",
       "full_username_str",
@@ -34,6 +35,7 @@ class ProtocolsDatatable < CustomDatatable
   def searchable_columns
     @searchable_columns ||= [
       "Protocol.name",
+      "Protocol.#{Protocol::PREFIXED_ID_SQL}",
       timestamp_db_column,
       "Protocol.updated_at"
     ]
@@ -56,9 +58,11 @@ class ProtocolsDatatable < CustomDatatable
   # now the method checks if the column is the created_at or updated_at and generate a custom SQL to parse
   # it back to the caller method
   def new_search_condition(column, value)
-    model, column = column.split('.')
+    model, column = column.split('.', 2)
     model = model.constantize
     case column
+    when Protocol::PREFIXED_ID_SQL
+      casted_column = ::Arel::Nodes::SqlLiteral.new(Protocol::PREFIXED_ID_SQL)
     when 'published_on'
       casted_column = ::Arel::Nodes::NamedFunction.new('CAST',
                         [ Arel.sql("to_char( protocols.created_at, '#{ formated_date }' ) AS VARCHAR") ] )
@@ -103,11 +107,12 @@ class ProtocolsDatatable < CustomDatatable
              else
                name_html(record)
              end,
-        '2': keywords_html(record),
-        '3': modules_html(record),
-        '4': escape_input(record.full_username_str),
-        '5': timestamp_column_html(record),
-        '6': I18n.l(record.updated_at, format: :full)
+        '2': escape_input(record.code),
+        '3': keywords_html(record),
+        '4': modules_html(record),
+        '5': escape_input(record.full_username_str),
+        '6': timestamp_column_html(record),
+        '7': I18n.l(record.updated_at, format: :full)
       }
     end
     result_data
diff --git a/app/models/protocol.rb b/app/models/protocol.rb
index 7eb8ecddb..c39c29ba6 100644
--- a/app/models/protocol.rb
+++ b/app/models/protocol.rb
@@ -1,6 +1,9 @@
 # frozen_string_literal: true
 
 class Protocol < ApplicationRecord
+  ID_PREFIX = 'PT'
+
+  include PrefixedIdModel
   include SearchableModel
   include RenamingUtil
   include SearchableByNameModel
diff --git a/app/views/protocols/index/_protocols_datatable.html.erb b/app/views/protocols/index/_protocols_datatable.html.erb
index 59d86ecb2..318116fd2 100644
--- a/app/views/protocols/index/_protocols_datatable.html.erb
+++ b/app/views/protocols/index/_protocols_datatable.html.erb
@@ -10,6 +10,7 @@
             </div>
           </th>
           <th id="protocol-name"><%= t("protocols.index.thead_name") %></th>
+          <th id="protocol-code"><%= t("protocols.index.thead_code") %></th>
           <th id="protocol-keywords"><%= t("protocols.index.thead_keywords") %></th>
           <th id="protocol-nr-of-linked-children"><%= t("protocols.index.thead_nr_of_linked_children") %></th>
           <% if @type == :public %>
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 809658737..48610df7b 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -2558,6 +2558,7 @@ en:
       publish: "Move to Team protocols"
       archive_action: "Archive"
       thead_name: "Name"
+      thead_code: "ID"
       thead_keywords: "Keywords"
       thead_nr_of_linked_children: "No. of linked tasks"
       thead_published_by: "Published by"
diff --git a/db/migrate/20221121132449_add_protocol_repository_code_index.rb b/db/migrate/20221121132449_add_protocol_repository_code_index.rb
new file mode 100644
index 000000000..6c3129c1f
--- /dev/null
+++ b/db/migrate/20221121132449_add_protocol_repository_code_index.rb
@@ -0,0 +1,14 @@
+# frozen_string_literal: true
+
+class AddProtocolRepositoryCodeIndex < ActiveRecord::Migration[6.1]
+  def up
+    ActiveRecord::Base.connection.execute(
+      "CREATE INDEX index_protocol_repository_on_protocol_repository_code ON "\
+      "protocols using gin (('PT'::text || id) gin_trgm_ops);"
+    )
+  end
+
+  def down
+    remove_index :protocols, name: 'index_protocol_repository_on_protocol_repository_code'
+  end
+end