diff --git a/der/src/asn1/boolean.rs b/der/src/asn1/boolean.rs
index 79473d0b8..da1c68364 100644
--- a/der/src/asn1/boolean.rs
+++ b/der/src/asn1/boolean.rs
@@ -1,8 +1,8 @@
 //! ASN.1 `BOOLEAN` support.
 
 use crate::{
-    asn1::Any, ByteSlice, DecodeValue, Decoder, EncodeValue, Encoder, Error, ErrorKind, FixedTag,
-    Length, OrdIsValueOrd, Result, Tag,
+    asn1::Any, ord::OrdIsValueOrd, ByteSlice, DecodeValue, Decoder, EncodeValue, Encoder, Error,
+    ErrorKind, FixedTag, Length, Result, Tag,
 };
 
 /// Byte used to encode `true` in ASN.1 DER. From X.690 Section 11.1:
diff --git a/der/src/asn1/generalized_time.rs b/der/src/asn1/generalized_time.rs
index bf4da9b6c..4bc545021 100644
--- a/der/src/asn1/generalized_time.rs
+++ b/der/src/asn1/generalized_time.rs
@@ -3,8 +3,8 @@
 use crate::{
     asn1::Any,
     datetime::{self, DateTime},
-    ByteSlice, DecodeValue, Decoder, EncodeValue, Encoder, Error, FixedTag, Length, OrdIsValueOrd,
-    Result, Tag,
+    ord::OrdIsValueOrd,
+    ByteSlice, DecodeValue, Decoder, EncodeValue, Encoder, Error, FixedTag, Length, Result, Tag,
 };
 use core::time::Duration;
 
diff --git a/der/src/asn1/ia5_string.rs b/der/src/asn1/ia5_string.rs
index 8cf0808e8..4329cf1cc 100644
--- a/der/src/asn1/ia5_string.rs
+++ b/der/src/asn1/ia5_string.rs
@@ -1,8 +1,8 @@
 //! ASN.1 `IA5String` support.
 
 use crate::{
-    asn1::Any, ByteSlice, DecodeValue, Decoder, EncodeValue, Encoder, Error, FixedTag, Length,
-    OrdIsValueOrd, Result, StrSlice, Tag,
+    asn1::Any, ord::OrdIsValueOrd, ByteSlice, DecodeValue, Decoder, EncodeValue, Encoder, Error,
+    FixedTag, Length, Result, StrSlice, Tag,
 };
 use core::{fmt, str};
 
diff --git a/der/src/asn1/null.rs b/der/src/asn1/null.rs
index 55614aa9c..80bd31bfc 100644
--- a/der/src/asn1/null.rs
+++ b/der/src/asn1/null.rs
@@ -1,8 +1,8 @@
 //! ASN.1 `NULL` support.
 
 use crate::{
-    asn1::Any, ByteSlice, DecodeValue, Decoder, Encodable, EncodeValue, Encoder, Error, ErrorKind,
-    FixedTag, Length, OrdIsValueOrd, Result, Tag,
+    asn1::Any, ord::OrdIsValueOrd, ByteSlice, DecodeValue, Decoder, Encodable, EncodeValue,
+    Encoder, Error, ErrorKind, FixedTag, Length, Result, Tag,
 };
 
 /// ASN.1 `NULL` type.
diff --git a/der/src/asn1/octet_string.rs b/der/src/asn1/octet_string.rs
index 56705c89a..4523099c4 100644
--- a/der/src/asn1/octet_string.rs
+++ b/der/src/asn1/octet_string.rs
@@ -1,8 +1,8 @@
 //! ASN.1 `OCTET STRING` support.
 
 use crate::{
-    asn1::Any, ByteSlice, DecodeValue, Decoder, EncodeValue, Encoder, Error, ErrorKind, FixedTag,
-    Length, OrdIsValueOrd, Result, Tag,
+    asn1::Any, ord::OrdIsValueOrd, ByteSlice, DecodeValue, Decoder, EncodeValue, Encoder, Error,
+    ErrorKind, FixedTag, Length, Result, Tag,
 };
 
 /// ASN.1 `OCTET STRING` type.
diff --git a/der/src/asn1/oid.rs b/der/src/asn1/oid.rs
index c05eff7d0..0854a8af2 100644
--- a/der/src/asn1/oid.rs
+++ b/der/src/asn1/oid.rs
@@ -1,8 +1,8 @@
 //! ASN.1 `OBJECT IDENTIFIER`
 
 use crate::{
-    asn1::Any, ByteSlice, DecodeValue, Decoder, EncodeValue, Encoder, Error, FixedTag, Length,
-    OrdIsValueOrd, Result, Tag, Tagged,
+    asn1::Any, ord::OrdIsValueOrd, ByteSlice, DecodeValue, Decoder, EncodeValue, Encoder, Error,
+    FixedTag, Length, Result, Tag, Tagged,
 };
 use const_oid::ObjectIdentifier;
 
diff --git a/der/src/asn1/printable_string.rs b/der/src/asn1/printable_string.rs
index d3116f5ab..867189ec9 100644
--- a/der/src/asn1/printable_string.rs
+++ b/der/src/asn1/printable_string.rs
@@ -1,8 +1,8 @@
 //! ASN.1 `PrintableString` support.
 
 use crate::{
-    asn1::Any, ByteSlice, DecodeValue, Decoder, EncodeValue, Encoder, Error, FixedTag, Length,
-    OrdIsValueOrd, Result, StrSlice, Tag,
+    asn1::Any, ord::OrdIsValueOrd, ByteSlice, DecodeValue, Decoder, EncodeValue, Encoder, Error,
+    FixedTag, Length, Result, StrSlice, Tag,
 };
 use core::{fmt, str};
 
diff --git a/der/src/asn1/utc_time.rs b/der/src/asn1/utc_time.rs
index e6de5c835..1e63c0414 100644
--- a/der/src/asn1/utc_time.rs
+++ b/der/src/asn1/utc_time.rs
@@ -3,8 +3,8 @@
 use crate::{
     asn1::Any,
     datetime::{self, DateTime},
-    ByteSlice, DecodeValue, Decoder, EncodeValue, Encoder, Error, FixedTag, Length, OrdIsValueOrd,
-    Result, Tag,
+    ord::OrdIsValueOrd,
+    ByteSlice, DecodeValue, Decoder, EncodeValue, Encoder, Error, FixedTag, Length, Result, Tag,
 };
 use core::time::Duration;
 
diff --git a/der/src/asn1/utf8_string.rs b/der/src/asn1/utf8_string.rs
index 4ca416aad..cf36f09dd 100644
--- a/der/src/asn1/utf8_string.rs
+++ b/der/src/asn1/utf8_string.rs
@@ -1,8 +1,8 @@
 //! ASN.1 `UTF8String` support.
 
 use crate::{
-    asn1::Any, ByteSlice, DecodeValue, Decoder, EncodeValue, Encoder, Error, FixedTag, Length,
-    OrdIsValueOrd, Result, StrSlice, Tag,
+    asn1::Any, ord::OrdIsValueOrd, ByteSlice, DecodeValue, Decoder, EncodeValue, Encoder, Error,
+    FixedTag, Length, Result, StrSlice, Tag,
 };
 use core::{fmt, str};
 
diff --git a/der/src/lib.rs b/der/src/lib.rs
index 890f2c397..f8d364d3b 100644
--- a/der/src/lib.rs
+++ b/der/src/lib.rs
@@ -360,7 +360,7 @@ pub use crate::{
     error::{Error, ErrorKind, Result},
     header::Header,
     length::Length,
-    ord::{DerOrd, OrdIsValueOrd, ValueOrd},
+    ord::{DerOrd, ValueOrd},
     tag::{Class, FixedTag, Tag, TagMode, TagNumber, Tagged},
     value::{DecodeValue, EncodeValue},
 };
diff --git a/x509/src/attribute.rs b/x509/src/attribute.rs
index 2762b6037..5ad09416c 100644
--- a/x509/src/attribute.rs
+++ b/x509/src/attribute.rs
@@ -2,7 +2,7 @@
 
 use der::{
     asn1::{Any, ObjectIdentifier},
-    OrdIsValueOrd, Sequence,
+    Sequence, ValueOrd,
 };
 
 /// Attribute type/value pairs as defined in [RFC 5280 Section 4.1.2.4].
@@ -18,7 +18,7 @@ use der::{
 /// ```
 ///
 /// [RFC 5280 Section 4.1.2.4]: https://tools.ietf.org/html/rfc5280#section-4.1.2.4
-#[derive(Copy, Clone, Debug, Eq, PartialEq, PartialOrd, Ord, Sequence)]
+#[derive(Copy, Clone, Debug, Eq, PartialEq, PartialOrd, Ord, Sequence, ValueOrd)]
 pub struct AttributeTypeAndValue<'a> {
     /// OID describing the type of the attribute
     pub oid: ObjectIdentifier,
@@ -26,5 +26,3 @@ pub struct AttributeTypeAndValue<'a> {
     /// Value of the attribute
     pub value: Any<'a>,
 }
-
-impl OrdIsValueOrd for AttributeTypeAndValue<'_> {}