diff --git a/specification/storage/data-plane/BlobStorage/Common/models.tsp b/specification/storage/data-plane/BlobStorage/Common/models.tsp
index 3d14b13ec0c0..7f0cb77bf852 100644
--- a/specification/storage/data-plane/BlobStorage/Common/models.tsp
+++ b/specification/storage/data-plane/BlobStorage/Common/models.tsp
@@ -1640,6 +1640,25 @@ alias LastAccessedResponseHeader = {
   lastAccessed?: utcDateTime;
 };
 
+/** The access tier change time response header */
+alias AccessTierChangeTimeResponseHeader = {
+  /** The time the tier was changed on the blob. This is only returned if the tier on the blob was ever set. */
+  #suppress "@azure-tools/typespec-azure-core/known-encoding" "Existing API"
+  @encode("rfc7231")
+  @header("x-ms-access-tier-change-time")
+  accessTierChangeTime?: utcDateTime;
+};
+
+/** The access tier change time response header */
+alias AccessTierChangeTimeResponseHeaderV2026_10_06 = {
+  /** The time the tier was changed on the blob. This is only returned if the tier on the blob was ever set. */
+  #suppress "@azure-tools/typespec-azure-core/known-encoding" "Existing API"
+  @added(Versions.v2026_10_06)
+  @encode("rfc7231")
+  @header("x-ms-access-tier-change-time")
+  accessTierChangeTime?: utcDateTime;
+};
+
 /** The is sealed response header. */
 alias IsSealedResponseHeader = {
   /** Whether the blob is sealed. */
@@ -1832,6 +1851,14 @@ alias ContentCrc64ResponseHeader = {
   contentCrc64?: bytes;
 };
 
+/** The content CRC64 response header. */
+alias ContentCrc64ResponseHeaderV2026_10_06 = {
+  /** The CRC64 hash of the content. */
+  @added(Versions.v2026_10_06)
+  @header("x-ms-content-crc64")
+  contentCrc64?: bytes;
+};
+
 /** The copy status response header. */
 alias CopyStatusResponseHeader = {
   /** Status of the copy operation. */
diff --git a/specification/storage/data-plane/BlobStorage/Common/routes.tsp b/specification/storage/data-plane/BlobStorage/Common/routes.tsp
index 55735166e923..161d2b035414 100644
--- a/specification/storage/data-plane/BlobStorage/Common/routes.tsp
+++ b/specification/storage/data-plane/BlobStorage/Common/routes.tsp
@@ -844,12 +844,7 @@ interface Blob {
         @header("x-ms-access-tier-inferred")
         accessTierInferred?: boolean;
 
-        /** The time the tier was changed on the blob. This is only returned if the tier on the blob was ever set. */
-        #suppress "@azure-tools/typespec-azure-core/known-encoding" "Existing API"
-        @added(Versions.v2026_10_06)
-        @encode("rfc7231")
-        @header("x-ms-access-tier-change-time")
-        accessTierChangeTime?: utcDateTime;
+        ...AccessTierChangeTimeResponseHeaderV2026_10_06;
 
         /** The underlying tier of a smart tier blob. Only returned if the blob is in Smart tier. */
         @added(Versions.v2026_10_06)
@@ -921,12 +916,7 @@ interface Blob {
         @header("x-ms-access-tier-inferred")
         accessTierInferred?: boolean;
 
-        /** The time the tier was changed on the blob. This is only returned if the tier on the blob was ever set. */
-        #suppress "@azure-tools/typespec-azure-core/known-encoding" "Existing API"
-        @added(Versions.v2026_10_06)
-        @encode("rfc7231")
-        @header("x-ms-access-tier-change-time")
-        accessTierChangeTime?: utcDateTime;
+        ...AccessTierChangeTimeResponseHeaderV2026_10_06;
 
         /** The underlying tier of a smart tier blob. Only returned if the blob is in Smart tier. */
         @added(Versions.v2026_10_06)
@@ -1013,11 +1003,7 @@ interface Blob {
       @alternateType(string, "go")
       archiveStatus?: ArchiveStatus;
 
-      /** The time the tier was changed on the blob. This is only returned if the tier on the blob was ever set. */
-      #suppress "@azure-tools/typespec-azure-core/known-encoding" "Existing API"
-      @encode("rfc7231")
-      @header("x-ms-access-tier-change-time")
-      accessTierChangeTime?: utcDateTime;
+      ...AccessTierChangeTimeResponseHeader;
 
       /** The underlying tier of a smart tier blob. Only returned if the blob is in Smart tier. */
       @added(Versions.v2026_06_06)
@@ -2238,12 +2224,7 @@ interface BlockBlob {
       ...EtagResponseHeader;
       ...LastModifiedResponseHeader;
       ...ContentMd5ResponseHeader;
-
-      /** The CRC64 hash of the content. */
-      @added(Versions.v2026_10_06)
-      @header("x-ms-content-crc64")
-      contentCrc64?: bytes;
-
+      ...ContentCrc64ResponseHeaderV2026_10_06;
       ...VersionIdResponseHeader;
       ...RequestServerEncryptedResponseHeader;
       ...EncryptionKeySha256ResponseHeader;
diff --git a/specification/storage/data-plane/BlobStorage/client.tsp b/specification/storage/data-plane/BlobStorage/client.tsp
index be56100dcb78..01ce6e16d486 100644
--- a/specification/storage/data-plane/BlobStorage/client.tsp
+++ b/specification/storage/data-plane/BlobStorage/client.tsp
@@ -257,6 +257,16 @@ interface PageBlobClient extends Storage.Blob.PageBlob {}
   "accessTierChangedOn",
   "javascript"
 );
+@@clientName(
+  AccessTierChangeTimeResponseHeader.accessTierChangeTime,
+  "accessTierChangedOn",
+  "javascript"
+);
+@@clientName(
+  AccessTierChangeTimeResponseHeaderV2026_10_06.accessTierChangeTime,
+  "accessTierChangedOn",
+  "javascript"
+);
 @@clientName(BlobProperties.creationTime, "createdOn", "javascript");
 @@clientName(
   CreationTimeResponseHeader.creationTime,
@@ -345,6 +355,16 @@ interface PageBlobClient extends Storage.Blob.PageBlob {}
 );
 
 @@clientName(ContentMd5ResponseHeader.contentMd5, "contentMD5", "javascript");
+@@clientName(
+  ContentCrc64ResponseHeader.contentCrc64,
+  "xMsContentCrc64",
+  "javascript"
+);
+@@clientName(
+  ContentCrc64ResponseHeaderV2026_10_06.contentCrc64,
+  "xMsContentCrc64",
+  "javascript"
+);
 
 @@alternateType(BlobProperties.contentLength, uint64, "rust");
 @@alternateType(BlobContentLengthRequired.size, uint64, "rust");