diff --git a/INTERPRETING.md b/INTERPRETING.md
index 6c78fa67c2a3d540147a3e6a4dd05705d431efb9..20181314fd537b2809157510c524fbfea100378d 100644
--- a/INTERPRETING.md
+++ b/INTERPRETING.md
@@ -4,6 +4,11 @@ All tests are declared as text files located within this project's `test`
 directory. In order to execute Test262 tests, runtimes must observe the
 following semantics.
 
+**Note** When these instructions change in any substantive way, the `version`
+property of the JSON-formatted `package.json` file will be incremented. In this
+way, consumers who are transitioning between revisions of Test262 can more
+easily determine the cause of new test failures.
+
 ## Test Execution
 
 Test262 tests are only valid under the runtime environment conditions described
diff --git a/package.json b/package.json
new file mode 100644
index 0000000000000000000000000000000000000000..4392fe54789b68b59ee95dfc6e8ec10e92bf91a3
--- /dev/null
+++ b/package.json
@@ -0,0 +1,15 @@
+{
+  "name": "test262",
+  "version": "1.0.0",
+  "description": "Test262 tests conformance to the continually maintained draft future ECMAScript standard found at http://tc39.github.io/ecma262/ , together with any Stage 3 or later TC39 proposals.",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/tc39/test262.git"
+  },
+  "license": "BSD",
+  "bugs": {
+    "url": "https://github.com/tc39/test262/issues"
+  },
+  "private": true,
+  "homepage": "https://github.com/tc39/test262#readme"
+}