diff --git a/src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Uns/EquipmentChildRows.cs b/src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Uns/EquipmentChildRows.cs
index ec313790..7886285c 100644
--- a/src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Uns/EquipmentChildRows.cs
+++ b/src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Uns/EquipmentChildRows.cs
@@ -2,11 +2,6 @@ using ZB.MOM.WW.OtOpcUa.Configuration.Enums;
 
 namespace ZB.MOM.WW.OtOpcUa.AdminUI.Uns;
 
-/// <summary>A tag row for the equipment page's Tags tab table — display columns plus the id used to
-/// open the edit modal. RowVersion is re-read fresh on delete (matching the tree's delete path).</summary>
-public sealed record EquipmentTagRow(
-    string TagId, string Name, string DriverInstanceId, string DataType, TagAccessLevel AccessLevel);
-
 /// <summary>A virtual-tag row for the equipment page's Virtual Tags tab table.</summary>
 public sealed record EquipmentVirtualTagRow(string VirtualTagId, string Name, string DataType, string ScriptId, bool Enabled);
 
diff --git a/src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Uns/IUnsTreeService.cs b/src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Uns/IUnsTreeService.cs
index b2dd3f01..fe2b478e 100644
--- a/src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Uns/IUnsTreeService.cs
+++ b/src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Uns/IUnsTreeService.cs
@@ -117,17 +117,6 @@ public interface IUnsTreeService
     /// <returns>The enterprise root nodes, each populated down to equipment.</returns>
     Task<IReadOnlyList<UnsNode>> LoadStructureAsync(CancellationToken ct = default);
 
-    /// <summary>
-    /// Loads the driver tags bound to a single equipment as flat row projections for the equipment
-    /// page's Tags tab table, ordered by Name. Each row carries the display columns plus the
-    /// <c>TagId</c> the table uses to open the edit modal. Reads untracked. Returns an empty list when
-    /// the equipment has no tags.
-    /// </summary>
-    /// <param name="equipmentId">The equipment whose tags to load.</param>
-    /// <param name="ct">A token to cancel the load.</param>
-    /// <returns>The equipment's tag rows ordered by Name; empty if it has none.</returns>
-    Task<IReadOnlyList<EquipmentTagRow>> LoadTagsForEquipmentAsync(string equipmentId, CancellationToken ct = default);
-
     /// <summary>
     /// Loads the virtual tags scoped to a single equipment as flat row projections for the equipment
     /// page's Virtual Tags tab table, ordered by Name. Each row carries the display columns plus the
diff --git a/src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Uns/UnsNode.cs b/src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Uns/UnsNode.cs
index fc5893b4..8bc8a127 100644
--- a/src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Uns/UnsNode.cs
+++ b/src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Uns/UnsNode.cs
@@ -75,13 +75,13 @@ public readonly record struct AreaRow(string UnsAreaId, string ClusterId, string
 /// <summary>Flat structural row describing a UNS line and its owning area.</summary>
 public readonly record struct LineRow(string UnsLineId, string UnsAreaId, string Name);
 
-/// <summary>Flat structural row describing an equipment node, its owning line and its tag/virtual-tag counts.</summary>
+/// <summary>Flat structural row describing an equipment node, its owning line and its virtual-tag count.
+/// (The driver-tag count was retired with the v3 equipment↔Tag binding; it was always zero.)</summary>
 public readonly record struct EquipmentRow(
     string EquipmentId,
     string UnsLineId,
     string MachineCode,
     string Name,
-    int TagCount,
     int VirtualTagCount);
 
 /// <summary>
@@ -237,7 +237,7 @@ public static class UnsTreeAssembly
 
     private static UnsNode BuildEquipment(EquipmentRow equipment, string clusterId)
     {
-        var childCount = equipment.TagCount + equipment.VirtualTagCount;
+        var childCount = equipment.VirtualTagCount;
         return new UnsNode
         {
             Kind = UnsNodeKind.Equipment,
diff --git a/src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Uns/UnsTreeService.cs b/src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Uns/UnsTreeService.cs
index 6f2823cd..b27583e3 100644
--- a/src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Uns/UnsTreeService.cs
+++ b/src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Uns/UnsTreeService.cs
@@ -61,11 +61,6 @@ public sealed class UnsTreeService(
             })
             .ToListAsync(ct);
 
-        // Per-equipment driver-tag counts: the equipment↔Tag binding was retired in v3
-        // (Tag is now Raw-only; authoring moved to the Raw tree in Batch 2/3). No binding
-        // exists to count against, so every equipment reports zero driver tags.
-        var tagCounts = new Dictionary<string, int>(StringComparer.Ordinal);
-
         // Per-equipment virtual-tag counts (virtual tags with no equipment are excluded).
         var vtagCounts = (await db.VirtualTags
                 .AsNoTracking()
@@ -81,21 +76,12 @@ public sealed class UnsTreeService(
                 e.UnsLineId,
                 e.MachineCode,
                 e.Name,
-                tagCounts.GetValueOrDefault(e.EquipmentId),
                 vtagCounts.GetValueOrDefault(e.EquipmentId)))
             .ToList();
 
         return UnsTreeAssembly.Build(clusters, areas, lines, equipment);
     }
 
-    /// <inheritdoc />
-    public Task<IReadOnlyList<EquipmentTagRow>> LoadTagsForEquipmentAsync(string equipmentId, CancellationToken ct = default)
-    {
-        // The equipment↔Tag binding was retired in v3 (Tag is now Raw-only; authoring moved to
-        // the Raw tree in Batch 2/3). No equipment-bound tags exist to list.
-        return Task.FromResult<IReadOnlyList<EquipmentTagRow>>(Array.Empty<EquipmentTagRow>());
-    }
-
     /// <inheritdoc />
     public async Task<IReadOnlyList<EquipmentVirtualTagRow>> LoadVirtualTagsForEquipmentAsync(string equipmentId, CancellationToken ct = default)
     {
diff --git a/tests/Server/ZB.MOM.WW.OtOpcUa.AdminUI.Tests/Uns/UnsTreeAssemblyTests.cs b/tests/Server/ZB.MOM.WW.OtOpcUa.AdminUI.Tests/Uns/UnsTreeAssemblyTests.cs
index cce549d2..d65815ff 100644
--- a/tests/Server/ZB.MOM.WW.OtOpcUa.AdminUI.Tests/Uns/UnsTreeAssemblyTests.cs
+++ b/tests/Server/ZB.MOM.WW.OtOpcUa.AdminUI.Tests/Uns/UnsTreeAssemblyTests.cs
@@ -37,7 +37,7 @@ public sealed class UnsTreeAssemblyTests
         var clusters = new[] { new ClusterRow("c1", "zb", "SiteA", "Alpha") };
         var areas = new[] { new AreaRow("a1", "c1", "AreaOne") };
         var lines = new[] { new LineRow("l1", "a1", "LineOne") };
-        var equipment = new[] { new EquipmentRow("e1", "l1", "MC-1", "EquipOne", 0, 0) };
+        var equipment = new[] { new EquipmentRow("e1", "l1", "MC-1", "EquipOne", 0) };
 
         var tree = UnsTreeAssembly.Build(clusters, areas, lines, equipment);
 
@@ -75,8 +75,8 @@ public sealed class UnsTreeAssemblyTests
         var lines = new[] { new LineRow("l1", "a1", "LineOne") };
         var equipment = new[]
         {
-            new EquipmentRow("e1", "l1", "MC-1", "WithChildren", 2, 1),
-            new EquipmentRow("e2", "l1", "MC-2", "Empty", 0, 0),
+            new EquipmentRow("e1", "l1", "MC-1", "WithChildren", 3),
+            new EquipmentRow("e2", "l1", "MC-2", "Empty", 0),
         };
 
         var tree = UnsTreeAssembly.Build(clusters, areas, lines, equipment);
@@ -84,7 +84,7 @@ public sealed class UnsTreeAssemblyTests
 
         // Equipment is a tree leaf that links to its own detail page, so it never carries an
         // expander — HasLazyChildren is always false regardless of its tag/virtual-tag count.
-        // The ChildCount badge still reflects tags + virtual tags.
+        // The ChildCount badge reflects its virtual tags.
         var withChildren = line.Children.Single(e => e.Key == "eq:e1");
         withChildren.ChildCount.ShouldBe(3);
         withChildren.HasLazyChildren.ShouldBeFalse();
@@ -145,8 +145,8 @@ public sealed class UnsTreeAssemblyTests
         };
         var equipment = new[]
         {
-            new EquipmentRow("e2", "l1", "MC-2", "EquipB", 0, 0),
-            new EquipmentRow("e1", "l1", "MC-1", "EquipA", 0, 0),
+            new EquipmentRow("e2", "l1", "MC-2", "EquipB", 0),
+            new EquipmentRow("e1", "l1", "MC-1", "EquipA", 0),
         };
 
         var tree = UnsTreeAssembly.Build(clusters, areas, lines, equipment);
diff --git a/tests/Server/ZB.MOM.WW.OtOpcUa.AdminUI.Tests/Uns/UnsTreeServiceEquipmentChildRowsTests.cs b/tests/Server/ZB.MOM.WW.OtOpcUa.AdminUI.Tests/Uns/UnsTreeServiceEquipmentChildRowsTests.cs
index 8d5f53a6..108c9ff8 100644
--- a/tests/Server/ZB.MOM.WW.OtOpcUa.AdminUI.Tests/Uns/UnsTreeServiceEquipmentChildRowsTests.cs
+++ b/tests/Server/ZB.MOM.WW.OtOpcUa.AdminUI.Tests/Uns/UnsTreeServiceEquipmentChildRowsTests.cs
@@ -14,16 +14,8 @@ public sealed class UnsTreeServiceEquipmentChildRowsTests
         return new UnsTreeService(UnsTreeTestDb.Factory(dbName));
     }
 
-    // v3 Batch-1: the equipment↔Tag binding was retired (Tag is Raw-only; authoring moved to the Raw
-    // tree in Batch 2). LoadTagsForEquipmentAsync is a stub that always returns empty — no equipment
-    // has bound driver tags to list. The former in-name-order / EquipmentId-scoping assertions moved
-    // with the authoring surface to the Batch-2 Raw-tree tests.
-    [Fact]
-    public async Task LoadTagsForEquipment_returns_empty_stub()
-    {
-        var rows = await SeededService().LoadTagsForEquipmentAsync(UnsTreeTestDb.SeededEquipmentId);
-        rows.ShouldBeEmpty();
-    }
+    // v3 Batch-1 retired the equipment↔Tag binding; the always-empty LoadTagsForEquipmentAsync stub and
+    // its EquipmentTagRow were deleted (R04 S4). Equipment tags are UnsTagReference rows now.
 
     [Fact]
     public async Task LoadVirtualTagsForEquipment_returns_vtags_in_name_order()
@@ -34,8 +26,4 @@ public sealed class UnsTreeServiceEquipmentChildRowsTests
         rows[0].Name.ShouldBe("computed");
         rows[0].DataType.ShouldBe("Double");
     }
-
-    [Fact]
-    public async Task LoadTagsForEquipment_empty_for_unknown_equipment()
-        => (await SeededService().LoadTagsForEquipmentAsync("EQ-NONE")).ShouldBeEmpty();
 }
diff --git a/tests/Server/ZB.MOM.WW.OtOpcUa.AdminUI.Tests/Uns/UnsTreeServiceTagTests.cs b/tests/Server/ZB.MOM.WW.OtOpcUa.AdminUI.Tests/Uns/UnsTreeServiceTagTests.cs
index e2caffe7..26728673 100644
--- a/tests/Server/ZB.MOM.WW.OtOpcUa.AdminUI.Tests/Uns/UnsTreeServiceTagTests.cs
+++ b/tests/Server/ZB.MOM.WW.OtOpcUa.AdminUI.Tests/Uns/UnsTreeServiceTagTests.cs
@@ -12,7 +12,7 @@ namespace ZB.MOM.WW.OtOpcUa.AdminUI.Tests.Uns;
 /// <c>FolderPath</c>), the <c>Namespace</c>/<c>NamespaceKind</c> entities were deleted, and tag
 /// authoring moved to the Raw tree (<c>/raw</c>) in Batch 2. So <see cref="UnsTreeService"/>'s
 /// <c>CreateTagAsync</c> / <c>UpdateTagAsync</c> now return a uniform Batch-1 refusal, and
-/// <c>LoadTagsForEquipmentAsync</c> / <c>LoadTagDriversForEquipmentAsync</c> return empty. The tests
+/// <c>LoadTagDriversForEquipmentAsync</c> returns empty. The tests
 /// below assert that stub contract (preserving the intent of the old CRUD-guard / driver-loader
 /// tests) plus the still-live <c>DeleteTagAsync</c> path (which continues to remove a raw Tag row).
 /// </summary>
@@ -153,16 +153,6 @@ public sealed class UnsTreeServiceTagTests
 
     // ----- Per-equipment loaders: retired → empty -----
 
-    /// <summary>The per-equipment tag list is retired (Tag is Raw-only) → always empty.</summary>
-    [Fact]
-    public async Task LoadTagsForEquipment_returns_empty()
-    {
-        var (service, dbName) = Fresh();
-        SeedHierarchy(dbName);
-
-        (await service.LoadTagsForEquipmentAsync("EQ-1")).ShouldBeEmpty();
-    }
-
     /// <summary>The per-equipment candidate-driver loader is retired (equipment↔driver binding gone) → always empty.</summary>
     [Fact]
     public async Task LoadTagDriversForEquipment_returns_empty()