diff --git a/zip-0316.rst b/zip-0316.rst
index 738310b1..df6cca0c 100644
--- a/zip-0316.rst
+++ b/zip-0316.rst
@@ -389,8 +389,8 @@ The following UFVK or UIVK Encodings are used in place of the
 :math:`\mathtt{addr}` field:
 
 * An Orchard UFVK or UIVK Encoding, with Typecode :math:`\mathtt{0x03},`
-  is the raw encoding of the Full Viewing Key or Incoming Viewing Key
-  respectively.
+  is the raw encoding of the Orchard Full Viewing Key or Orchard Incoming
+  Viewing Key respectively.
 
 * A Sapling UFVK Encoding, with Typecode :math:`\mathtt{0x02},` is
   the encoding of a Sapling Extended Full Viewing Key defined in
@@ -400,9 +400,10 @@ The following UFVK or UIVK Encodings are used in place of the
   is an encoding of :math:`(\mathsf{dk}, \mathsf{ivk})` given by
   :math:`\mathsf{I2LEOSP}_{88}(\mathsf{dk})\,||\,\mathsf{I2LEOSP}_{256}(\mathsf{ivk}).`
 
-* There is no defined way to represent a viewing key for a Transparent
-  P2SH Address in a UFVK or UIVK. The Typecode :math:`\mathtt{0x01}`
-  MUST not be included in a UFVK or UIVK by Producers, and MUST be
+* There is no defined way to represent a Viewing Key for a Transparent
+  P2SH Address in a UFVK or UIVK (because P2SH Addresses cannot be
+  diversified in an unlinkable way). The Typecode :math:`\mathtt{0x01}`
+  MUST NOT be included in a UFVK or UIVK by Producers, and MUST be
   treated as unrecognized by Consumers.
 
 * For Transparent P2PKH Addresses that are derived according to BIP 32