diff --git a/app/main/views/index.py b/app/main/views/index.py
index 6f8c864d5c0..13e5cf2b01b 100644
--- a/app/main/views/index.py
+++ b/app/main/views/index.py
@@ -175,9 +175,16 @@ def guidance_api_documentation_section():
     )
 
 
-@main.route("/using-notify/api-documentation/section/choose-docs")
+@main.route("/using-notify/api-documentation/section/choose-docs", methods=["GET", "POST"])
 def guidance_api_documentation_section_choose_docs():
     form = ChooseDocsForm(section_tag=request.args.get("section_tag"))
+
+    if form.validate_on_submit():
+        redirect_url = (
+            f"https://docs.notifications.service.gov.uk/{form.docs_version.data}.html#{form.section_tag.data}"
+        )
+        return redirect(redirect_url)
+
     return render_template(
         "views/guidance/using-notify/api-documentation-section-choose-docs.html",
         navigation_links=using_notify_nav(),
diff --git a/tests/app/main/views/test_index.py b/tests/app/main/views/test_index.py
index 4c25d28a09d..1734a051ba6 100644
--- a/tests/app/main/views/test_index.py
+++ b/tests/app/main/views/test_index.py
@@ -445,3 +445,11 @@ def test_GET_guidance_api_documentation_section_choose_docs(client_request):
         "main.guidance_api_documentation_section_choose_docs",
         section_tag="send-a-file-by-email",
     )
+
+
+def test_POST_guidance_api_documentation_section_choose_docs(client_request):
+    client_request.post(
+        "main.guidance_api_documentation_section_choose_docs",
+        _data={"docs_version": "python", "section_tag": "send-a-file-by-email"},
+        _expected_redirect="https://docs.notifications.service.gov.uk/python.html#send-a-file-by-email",
+    )