diff --git a/inspector-vc/src/test/java/org/oneedtech/inspect/vc/OB20Tests.java b/inspector-vc/src/test/java/org/oneedtech/inspect/vc/OB20Tests.java
index fec8092..f927171 100644
--- a/inspector-vc/src/test/java/org/oneedtech/inspect/vc/OB20Tests.java
+++ b/inspector-vc/src/test/java/org/oneedtech/inspect/vc/OB20Tests.java
@@ -186,6 +186,33 @@ public class OB20Tests {
 		});
 	}
 
+	@Test
+	void testExpired() {
+		assertDoesNotThrow(()->{
+			Report report = validator.run(Samples.OB20.JSON.SIMPLE_EXPIRED_ASSERTION_JSON.asFileResource());
+			if(verbose) PrintHelper.print(report, true);
+			assertInvalid(report);
+		});
+	}
+
+	@Test
+	void testExpiredBeforeIssued() {
+		assertDoesNotThrow(()->{
+			Report report = validator.run(Samples.OB20.JSON.SIMPLE_EXPIRED_BEFORE_ISSUED_ASSERTION_JSON.asFileResource());
+			if(verbose) PrintHelper.print(report, true);
+			assertInvalid(report);
+		});
+	}
+
+	@Test
+	void testIssuedInFuture() {
+		assertDoesNotThrow(()->{
+			Report report = validator.run(Samples.OB20.JSON.SIMPLE_FUTURE_ASSERTION_JSON.asFileResource());
+			if(verbose) PrintHelper.print(report, true);
+			assertInvalid(report);
+		});
+	}
+
 	@Nested
 	static class WarningTests {
 		@BeforeAll
diff --git a/inspector-vc/src/test/java/org/oneedtech/inspect/vc/Samples.java b/inspector-vc/src/test/java/org/oneedtech/inspect/vc/Samples.java
index 7729df6..f873f19 100644
--- a/inspector-vc/src/test/java/org/oneedtech/inspect/vc/Samples.java
+++ b/inspector-vc/src/test/java/org/oneedtech/inspect/vc/Samples.java
@@ -74,7 +74,12 @@ public class Samples {
 			public final static Sample ISSUER_WITH_ALLOWED_ORIGINS_VALID_STARTSWITH = new Sample("ob20/basic-assertion-with-allowed-origins-valid-starts-with.json", true);
 			public final static Sample ISSUER_WITH_ALLOWED_ORIGINS_INVALID_STARTSWITH = new Sample("ob20/basic-assertion-with-allowed-origins-invalid-starts-with.json", false);
 			public final static Sample ISSUER_WITH_ALLOWED_ORIGINS_VALID_MULTIPLE_STARTSWITH = new Sample("ob20/basic-assertion-with-allowed-origins-valid-multiple-starts-with.json", true);
-			public final static Sample ISSUER_WITH_ALLOWED_ORIGINS_INVALID_MULTIPLE_STARTSWITH = new Sample("ob20/basic-assertion-with-allowed-origins-invalid-multiple-starts-with.json", false);
+			// original: test_validation: test_assertion_not_expired
+			public final static Sample SIMPLE_EXPIRED_ASSERTION_JSON = new Sample("ob20/basic-assertion-expired.json", true);
+			// original: test_validation: test_assertion_not_expires_before_issue
+			public final static Sample SIMPLE_EXPIRED_BEFORE_ISSUED_ASSERTION_JSON = new Sample("ob20/basic-assertion-expired-before-issued.json", true);
+			// original: test_validation: test_assertion_not_issued_in_future
+			public final static Sample SIMPLE_FUTURE_ASSERTION_JSON = new Sample("ob20/basic-assertion-in-future.json", true);
 		}
 
 		public static final class PNG {
diff --git a/inspector-vc/src/test/resources/ob20/basic-assertion-expired-before-issued.json b/inspector-vc/src/test/resources/ob20/basic-assertion-expired-before-issued.json
new file mode 100644
index 0000000..8756ff7
--- /dev/null
+++ b/inspector-vc/src/test/resources/ob20/basic-assertion-expired-before-issued.json
@@ -0,0 +1,19 @@
+{
+  "@context": "https://w3id.org/openbadges/v2",
+  "type": "Assertion",
+  "id": "https://example.org/beths-robotics-badge.json",
+  "recipient": {
+    "type": "email",
+    "hashed": true,
+    "salt": "deadsea",
+    "identity": "sha256$ecf5409f3f4b91ab60cc5ef4c02aef7032354375e70cf4d8e43f6a1d29891942"
+  },
+  "image": "https://example.org/beths-robot-badge.png",
+  "evidence": "https://example.org/beths-robot-work.html",
+  "issuedOn": "2022-12-31T23:59:59Z",
+  "expires": "2022-11-15T23:59:59Z",
+  "badge": "https://example.org/robotics-badge.json",
+  "verification": {
+    "type": "hosted"
+  }
+}
\ No newline at end of file
diff --git a/inspector-vc/src/test/resources/ob20/basic-assertion-expired.json b/inspector-vc/src/test/resources/ob20/basic-assertion-expired.json
new file mode 100644
index 0000000..ac21119
--- /dev/null
+++ b/inspector-vc/src/test/resources/ob20/basic-assertion-expired.json
@@ -0,0 +1,19 @@
+{
+  "@context": "https://w3id.org/openbadges/v2",
+  "type": "Assertion",
+  "id": "https://example.org/beths-robotics-badge.json",
+  "recipient": {
+    "type": "email",
+    "hashed": true,
+    "salt": "deadsea",
+    "identity": "sha256$ecf5409f3f4b91ab60cc5ef4c02aef7032354375e70cf4d8e43f6a1d29891942"
+  },
+  "image": "https://example.org/beths-robot-badge.png",
+  "evidence": "https://example.org/beths-robot-work.html",
+  "issuedOn": "2016-12-31T23:59:59Z",
+  "expires": "2022-11-15T23:59:59Z",
+  "badge": "https://example.org/robotics-badge.json",
+  "verification": {
+    "type": "hosted"
+  }
+}
\ No newline at end of file
diff --git a/inspector-vc/src/test/resources/ob20/basic-assertion-in-future.json b/inspector-vc/src/test/resources/ob20/basic-assertion-in-future.json
new file mode 100644
index 0000000..d0234d1
--- /dev/null
+++ b/inspector-vc/src/test/resources/ob20/basic-assertion-in-future.json
@@ -0,0 +1,18 @@
+{
+  "@context": "https://w3id.org/openbadges/v2",
+  "type": "Assertion",
+  "id": "https://example.org/beths-robotics-badge.json",
+  "recipient": {
+    "type": "email",
+    "hashed": true,
+    "salt": "deadsea",
+    "identity": "sha256$ecf5409f3f4b91ab60cc5ef4c02aef7032354375e70cf4d8e43f6a1d29891942"
+  },
+  "image": "https://example.org/beths-robot-badge.png",
+  "evidence": "https://example.org/beths-robot-work.html",
+  "issuedOn": "2100-12-31T23:59:59Z",
+  "badge": "https://example.org/robotics-badge.json",
+  "verification": {
+    "type": "hosted"
+  }
+}
\ No newline at end of file