diff --git a/docs/development/test-vectors.rst b/docs/development/test-vectors.rst
index 622a9d7..d678260 100644
--- a/docs/development/test-vectors.rst
+++ b/docs/development/test-vectors.rst
@@ -154,6 +154,10 @@
   subject alternative name extension with an ``iPAddress`` value.
 * ``san_dirname.pem`` - An RSA 2048 bit self-signed certificate containing a
   subject alternative name extension with a ``directoryName`` value.
+* ``inhibit_any_policy_5.pem`` - An RSA 2048 bit self-signed certificate
+  containing an inhibit any policy extension with the value 5.
+* ``inhibit_any_policy_negative.pem`` - An RSA 2048 bit self-signed certificate
+  containing an inhibit any policy extension with the value -1.
 
 Custom X.509 Request Vectors
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
diff --git a/vectors/cryptography_vectors/x509/custom/inhibit_any_policy_5.pem b/vectors/cryptography_vectors/x509/custom/inhibit_any_policy_5.pem
new file mode 100644
index 0000000..681770c
--- /dev/null
+++ b/vectors/cryptography_vectors/x509/custom/inhibit_any_policy_5.pem
@@ -0,0 +1,18 @@
+-----BEGIN CERTIFICATE-----
+MIIC8DCCAdigAwIBAgITBmot4z1/TiVQVVjARir3nGQGETANBgkqhkiG9w0BAQUF
+ADApMQ0wCwYDVQQKDARQeUNBMRgwFgYDVQQDDA9jcnlwdG9ncmFwaHkuaW8wHhcN
+MTUwNTAxMjIxMTIyWhcNMTYwNDMwMjIxMTIyWjApMQ0wCwYDVQQKDARQeUNBMRgw
+FgYDVQQDDA9jcnlwdG9ncmFwaHkuaW8wggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAw
+ggEKAoIBAQCZcYt4uuICKbglCg0qlreb8P52FjWhdrJ7GNbZBDw5iwsKoLb191YI
+6cXRk+FMtMJJ7aqjoXxpHDsad2iDsMRtj9ZjUMRxZTJyZVvmYCm4FP4bP1GE+W48
+N3hiUq8hv3UX4nAzLMIniXfQANYpHDZxh0EkX3vQaCEi5abwbzb0Ra7sUWNAPUVF
+Ag3IyNkYqXm1lveWkogkXnBgr8RH7dN59hGHYbKU0aRpmHBB82NyJUkDCl47ybNJ
+xaRS9M/QOMg2FCXgQGJzDcLvafIeEqcoy6jq9NwzydafHeYc6QY5P7pl7AqwEYeL
+AYC3i0eTtRCP64ChL4eA9VKREiwesKS5AgMBAAGjETAPMA0GA1UdNgEB/wQDAgEF
+MA0GCSqGSIb3DQEBBQUAA4IBAQCYMu1zYjS7pDmJE+RJtIHxzUNrfBs9mV58H9PN
+UgUvttCWdD+6U9v5mOJS5HVl9wiR8Slf9lz9KuTJkT0K5qmcn0PZpo/eJZd7yDYK
+hRfQ8xQapA/zK4u1S/kfflXmvvwvCaAn3fEfqOrylPrtCQBFwLZDo88a1Fmjmjti
+ipwxCkGMrwRaWQtIzEB1T0lCEGSfNtI4pcNM84RrlW+WYUBjsNm4X3kPnLLl8BY3
+xcUPQgBZpFdLDcOLrd0XeTRpMenzAZ/ksYEpvDlnlk54Pfe+I8dXF9oe9LhFUfjx
+rbvJIJgRkQeJl9hwqQyqgnpaIZHA5opoMkjeYxihsR5pQ+ag
+-----END CERTIFICATE-----
diff --git a/vectors/cryptography_vectors/x509/custom/inhibit_any_policy_negative.pem b/vectors/cryptography_vectors/x509/custom/inhibit_any_policy_negative.pem
new file mode 100644
index 0000000..3d610e6
--- /dev/null
+++ b/vectors/cryptography_vectors/x509/custom/inhibit_any_policy_negative.pem
@@ -0,0 +1,18 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----