diff --git a/draft-yasskin-http-origin-signed-responses.md b/draft-yasskin-http-origin-signed-responses.md
index e1cb4dcb..d01c1508 100644
--- a/draft-yasskin-http-origin-signed-responses.md
+++ b/draft-yasskin-http-origin-signed-responses.md
@@ -1582,6 +1582,9 @@ Specification: This document
 
 ## Internet Media Type application/signed-exchange
 
+IANA is requested to register the MIME media type ({{!IANA.media-types}}) for
+signed exchanges, application/signed-exchange, as follows:
+
 Type name:  application
 
 Subtype name:  signed-exchange
@@ -1638,8 +1641,13 @@ Author:  See Authors' Addresses section.
 
 Change controller:  IESG
 
+Provisional registration? Yes
+
 ## Internet Media Type application/cert-chain+cbor
 
+IANA is requested to register the MIME media type ({{!IANA.media-types}}) for
+CBOR-format certificate chains, application/cert-chain+cbor, as follows:
+
 Type name:  application
 
 Subtype name:  cert-chain+cbor
@@ -1681,6 +1689,8 @@ Author:  See Authors' Addresses section.
 
 Change controller:  IESG
 
+Provisional registration? Yes
+
 ## The cansignhttpexchanges CAA Parameter {#iana-caa-cansignhttpexchanges}
 
 There are no IANA considerations for this parameter.
diff --git a/draft-yasskin-wpack-bundled-exchanges.md b/draft-yasskin-wpack-bundled-exchanges.md
index b254af35..07e1100b 100644
--- a/draft-yasskin-wpack-bundled-exchanges.md
+++ b/draft-yasskin-wpack-bundled-exchanges.md
@@ -878,8 +878,8 @@ field, clients SHOULD reject bundles served without it.
 
 ## Internet Media Type Registration
 
-IANA maintains the registry of Internet Media Types {{?RFC6838}}
-at <https://www.iana.org/assignments/media-types>.
+IANA is requested to register the MIME media type ({{!IANA.media-types}}) for
+bundled exchanges, application/webbundle, as follows:
 
 * Type name: application
 
@@ -930,7 +930,7 @@ at <https://www.iana.org/assignments/media-types>.
 * Change controller:
   The IESG <iesg@ietf.org>
 
-* Provisional registration? (standards tree only): Not yet.
+* Provisional registration? Yes.
 
 ## Web Bundle Section Name Registry {#section-name-registry}