diff --git a/lib/pubid/iso.rb b/lib/pubid/iso.rb
index 768144f..84398a5 100644
--- a/lib/pubid/iso.rb
+++ b/lib/pubid/iso.rb
@@ -17,6 +17,7 @@ module Iso
 require_relative "iso/transformer"
 require_relative "iso/identifier/base"
 require_relative "iso/identifier/international_standard"
+require_relative "iso/identifier/international_standardized_profile"
 require_relative "iso/identifier/technical_report"
 require_relative "iso/identifier/technical_specification"
 require_relative "iso/identifier/technical_committee"
@@ -45,3 +46,4 @@ module Iso
 require_relative "iso/renderer/publicly_available_specification"
 require_relative "iso/renderer/guide"
 require_relative "iso/renderer/recommendation"
+require_relative "iso/renderer/international_standardized_profile"
diff --git a/lib/pubid/iso/identifier/international_standardized_profile.rb b/lib/pubid/iso/identifier/international_standardized_profile.rb
new file mode 100644
index 0000000..b2d6926
--- /dev/null
+++ b/lib/pubid/iso/identifier/international_standardized_profile.rb
@@ -0,0 +1,28 @@
+module Pubid::Iso
+  module Identifier
+    class InternationalStandardizedProfile < Base
+      def_delegators 'Pubid::Iso::Identifier::InternationalStandardizedProfile', :type
+
+      TYPED_STAGES = {
+        dis: {
+          abbr: "DISP",
+          name: "Draft International Standardized Profile",
+          harmonized_stages: %w[40.00 40.20 40.60 40.92 40.93],
+        },
+        fdis: {
+          abbr: "FDISP",
+          name: "Final Draft International Standardized Profile",
+          harmonized_stages: %w[50.00 50.20 50.60 50.92],
+        },
+      }.freeze
+
+      def self.type
+        :isp
+      end
+
+      def self.get_renderer_class
+        Renderer::InternationalStandardizedProfile
+      end
+    end
+  end
+end
diff --git a/lib/pubid/iso/renderer/international_standardized_profile.rb b/lib/pubid/iso/renderer/international_standardized_profile.rb
new file mode 100644
index 0000000..68723fb
--- /dev/null
+++ b/lib/pubid/iso/renderer/international_standardized_profile.rb
@@ -0,0 +1,16 @@
+module Pubid::Iso::Renderer
+  class InternationalStandardizedProfile < Base
+    def omit_post_publisher_symbol?(_typed_stage, _stage, _opts)
+      # always need post publisher symbol, because we always have to add "TR"
+      false
+    end
+
+    def render_identifier(params, _opts)
+      type_prefix = (params[:typed_stage].nil? || params[:typed_stage].empty?) ? "ISP" : ""
+
+      type_prefix = " #{type_prefix}" if params[:stage] && !params[:stage].empty?
+
+      "%{publisher}%{typed_stage}%{stage}#{type_prefix} %{number}%{part}%{iteration}%{year}%{amendments}%{corrigendums}%{edition}" % params
+    end
+  end
+end
diff --git a/spec/pubid_iso/identifier/base_spec.rb b/spec/pubid_iso/identifier/base_spec.rb
index aceae20..92c7855 100644
--- a/spec/pubid_iso/identifier/base_spec.rb
+++ b/spec/pubid_iso/identifier/base_spec.rb
@@ -625,6 +625,12 @@ module Identifier
         it_behaves_like "converts pubid to pubid"
       end
 
+      context "ISO/IEC ISP 10611-3:2003" do
+        let(:pubid) { "ISO/IEC ISP 10611-3:2003" }
+
+        it_behaves_like "converts pubid to pubid"
+      end
+
       describe "#parse_from_title" do
         subject { described_class.parse_from_title(title) }
         let(:title) { "#{pubid} Geographic information — Metadata — Part 1: Fundamentals" }