diff --git a/CHANGES.md b/CHANGES.md
index 53fd2ba60474..ed7d1095ee53 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -3,6 +3,9 @@ Change Log
 
 ### 1.48 - 2018-08-01
 
+#### Deprecated :hourglass_flowing_sand:
+* Support for 3D Tiles `content.url` is deprecated to reflect updates to the [3D Tiles spec](https://github.com/AnalyticalGraphicsInc/3d-tiles/pull/301). Use `content.uri instead`. Support for `content.url` will remain for backwards compatibility. [#6744](https://github.com/AnalyticalGraphicsInc/cesium/pull/6744)
+
 #### Fixes :wrench:
 * Fixed bug causing billboards and labels to appear the wrong size when switching scene modes [#6745](https://github.com/AnalyticalGraphicsInc/cesium/issues/6745)
 
diff --git a/Source/Scene/Cesium3DTile.js b/Source/Scene/Cesium3DTile.js
index a3e970509322..e0bb8093bc16 100644
--- a/Source/Scene/Cesium3DTile.js
+++ b/Source/Scene/Cesium3DTile.js
@@ -147,7 +147,7 @@ define([
         }
 
         /**
-         * Specifies the type of refinment that is used when traversing this tile for rendering.
+         * Specifies the type of refinement that is used when traversing this tile for rendering.
          *
          * @type {Cesium3DTileRefine}
          * @readonly
@@ -185,15 +185,20 @@ define([
         baseResource = Resource.createIfNeeded(baseResource);
 
         if (defined(contentHeader)) {
-            var contentHeaderUrl = contentHeader.url;
-            if (tileset._brokenUrlWorkaround && contentHeaderUrl.length > 0 && (contentHeaderUrl[0] === '/')) {
-                contentHeaderUrl = contentHeader.url = contentHeaderUrl.substring(1);
+            var contentHeaderUri = contentHeader.uri;
+            if (defined(contentHeader.url)) {
+                Cesium3DTile._deprecationWarning('contentUrl', 'This tileset JSON uses the "content.url" property which has been deprecated. Use "content.uri" instead.');
+                contentHeaderUri = contentHeader.url;
+            }
+
+            if (tileset._brokenUrlWorkaround && contentHeaderUri.length > 0 && (contentHeaderUri[0] === '/')) {
+                contentHeaderUri = contentHeader.uri = contentHeaderUri.substring(1);
             }
 
             hasEmptyContent = false;
             contentState = Cesium3DTileContentState.UNLOADED;
             contentResource = baseResource.getDerivedResource({
-                url : contentHeaderUrl
+                url : contentHeaderUri
             });
             serverKey = RequestScheduler.getServerKey(contentResource.getUrlComponent());
         } else {
diff --git a/Specs/Data/Cesium3DTiles/Tilesets/TilesetWithContentUri/tileset.json b/Specs/Data/Cesium3DTiles/Tilesets/TilesetWithContentUri/tileset.json
new file mode 100644
index 000000000000..4b19308e1a4a
--- /dev/null
+++ b/Specs/Data/Cesium3DTiles/Tilesets/TilesetWithContentUri/tileset.json
@@ -0,0 +1,41 @@
+{
+  "asset": {
+    "version": "1.0"
+  },
+  "properties": {
+    "id": {
+      "minimum": 0,
+      "maximum": 9
+    },
+    "Longitude": {
+      "minimum": -1.3196972173766555,
+      "maximum": -1.3196718547473905
+    },
+    "Latitude": {
+      "minimum": 0.6988624606923348,
+      "maximum": 0.6988888301460953
+    },
+    "Height": {
+      "minimum": 6.2074098233133554,
+      "maximum": 12.83180232718587
+    }
+  },
+  "geometricError": 70,
+  "root": {
+    "refine": "ADD",
+    "boundingVolume": {
+      "region": [
+        -1.3197004795898053,
+        0.6988582109,
+        -1.3196595204101946,
+        0.6988897891,
+        0,
+        20
+      ]
+    },
+    "geometricError": 0,
+    "content": {
+      "uri": "data:application/octet-stream;base64,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"
+    }
+  }
+}
diff --git a/Specs/Scene/Cesium3DTilesetSpec.js b/Specs/Scene/Cesium3DTilesetSpec.js
index fe2d50b80f7b..b072e9e9d1f1 100644
--- a/Specs/Scene/Cesium3DTilesetSpec.js
+++ b/Specs/Scene/Cesium3DTilesetSpec.js
@@ -117,6 +117,8 @@ defineSuite([
     var tilesetReplacementWithViewerRequestVolumeUrl = 'Data/Cesium3DTiles/Tilesets/TilesetReplacementWithViewerRequestVolume/tileset.json';
 
     var tilesetWithExternalResourcesUrl = 'Data/Cesium3DTiles/Tilesets/TilesetWithExternalResources/tileset.json';
+    var tilesetUrlWithContentUri = 'Data/Cesium3DTiles/Tilesets/TilesetWithContentUri/tileset.json';
+
     var tilesetSubtreeExpirationUrl = 'Data/Cesium3DTiles/Tilesets/TilesetSubtreeExpiration/tileset.json';
     var tilesetSubtreeUrl = 'Data/Cesium3DTiles/Tilesets/TilesetSubtreeExpiration/subtree.json';
     var batchedExpirationUrl = 'Data/Cesium3DTiles/Batched/BatchedExpiration/tileset.json';
@@ -2888,6 +2890,14 @@ defineSuite([
         });
     });
 
+    it('supports content data URIs', function() {
+        return Cesium3DTilesTester.loadTileset(scene, tilesetUrlWithContentUri).then(function(tileset) {
+            var statistics = tileset._statistics;
+            expect(statistics.visited).toEqual(1);
+            expect(statistics.numberOfCommands).toEqual(1);
+        });
+    });
+
     it('destroys attached ClippingPlaneCollections and ClippingPlaneCollections that have been detached', function() {
         return Cesium3DTilesTester.loadTileset(scene, tilesetUrl).then(function(tileset) {
             var clippingPlaneCollection1 = new ClippingPlaneCollection({