diff --git a/testing/web-platform/meta/feature-policy/reporting/serial-report-only.https.html.ini b/testing/web-platform/meta/feature-policy/reporting/serial-report-only.https.html.ini
new file mode 100644
index 000000000000..83569dac26f0
--- /dev/null
+++ b/testing/web-platform/meta/feature-policy/reporting/serial-report-only.https.html.ini
@@ -0,0 +1,7 @@
+[serial-report-only.https.html]
+  [getPorts in serial report only mode]
+    expected: FAIL
+
+  [requestPort in serial report only mode]
+    expected: FAIL
+
diff --git a/testing/web-platform/meta/feature-policy/reporting/serial-reporting.https.html.ini b/testing/web-platform/meta/feature-policy/reporting/serial-reporting.https.html.ini
new file mode 100644
index 000000000000..15a8ff54d95e
--- /dev/null
+++ b/testing/web-platform/meta/feature-policy/reporting/serial-reporting.https.html.ini
@@ -0,0 +1,7 @@
+[serial-reporting.https.html]
+  [requestPort in serial reporting mode]
+    expected: FAIL
+
+  [getPorts in serial reporting mode]
+    expected: FAIL
+
diff --git a/testing/web-platform/meta/serial/serial-allowed-by-feature-policy-attribute-redirect-on-load.https.sub.html.ini b/testing/web-platform/meta/serial/serial-allowed-by-feature-policy-attribute-redirect-on-load.https.sub.html.ini
new file mode 100644
index 000000000000..46e03e96c1b7
--- /dev/null
+++ b/testing/web-platform/meta/serial/serial-allowed-by-feature-policy-attribute-redirect-on-load.https.sub.html.ini
@@ -0,0 +1,14 @@
+[serial-allowed-by-feature-policy-attribute-redirect-on-load.https.sub.html]
+  expected: TIMEOUT
+  [Feature-Policy allow="serial" disallows cross-origin relocation.]
+    expected: TIMEOUT
+
+  [Feature-Policy allow="serial" allows workers in same-origin relocation.]
+    expected: TIMEOUT
+
+  [Feature-Policy allow="serial" allows same-origin relocation.]
+    expected: TIMEOUT
+
+  [Feature-Policy allow="serial" disallows workers in cross-origin relocation.]
+    expected: TIMEOUT
+
diff --git a/testing/web-platform/meta/serial/serial-allowed-by-feature-policy-attribute.https.sub.html.ini b/testing/web-platform/meta/serial/serial-allowed-by-feature-policy-attribute.https.sub.html.ini
new file mode 100644
index 000000000000..28be79f0a359
--- /dev/null
+++ b/testing/web-platform/meta/serial/serial-allowed-by-feature-policy-attribute.https.sub.html.ini
@@ -0,0 +1,17 @@
+[serial-allowed-by-feature-policy-attribute.https.sub.html]
+  expected: TIMEOUT
+  [Feature policy "serial" can be enabled in a worker in same-origin iframe using allow="serial" attribute]
+    expected: TIMEOUT
+
+  [Feature policy "serial" can be enabled in a worker in cross-origin iframe using allow="serial" attribute]
+    expected: TIMEOUT
+
+  [Feature policy "serial" can be enabled in cross-origin iframe using allow="serial" attribute]
+    expected: TIMEOUT
+
+  [Feature policy "serial" can be enabled in same-origin iframe using allow="serial" attribute]
+    expected: TIMEOUT
+
+  [Inherited header feature policy allows dedicated workers.]
+    expected: FAIL
+
diff --git a/testing/web-platform/meta/serial/serial-allowed-by-feature-policy.https.sub.html.ini b/testing/web-platform/meta/serial/serial-allowed-by-feature-policy.https.sub.html.ini
new file mode 100644
index 000000000000..b9c0dfb5ee2d
--- /dev/null
+++ b/testing/web-platform/meta/serial/serial-allowed-by-feature-policy.https.sub.html.ini
@@ -0,0 +1,20 @@
+[serial-allowed-by-feature-policy.https.sub.html]
+  expected: TIMEOUT
+  [Feature-Policy header {"serial" : ["*"\]} allows cross-origin iframes.]
+    expected: TIMEOUT
+
+  [Feature-Policy header {"serial" : ["*"\]} allows workers in cross-origin iframes.]
+    expected: TIMEOUT
+
+  [Inherited header feature policy allows dedicated workers.]
+    expected: FAIL
+
+  [Feature-Policy header {"serial" : ["*"\]} allows the top-level document.]
+    expected: FAIL
+
+  [Feature-Policy header {"serial" : ["*"\]} allows same-origin iframes.]
+    expected: TIMEOUT
+
+  [Feature-Policy header {"serial" : ["*"\]} allows workers in same-origin iframes.]
+    expected: TIMEOUT
+
diff --git a/testing/web-platform/meta/serial/serial-default-feature-policy.https.sub.html.ini b/testing/web-platform/meta/serial/serial-default-feature-policy.https.sub.html.ini
new file mode 100644
index 000000000000..ba60be7ae552
--- /dev/null
+++ b/testing/web-platform/meta/serial/serial-default-feature-policy.https.sub.html.ini
@@ -0,0 +1,11 @@
+[serial-default-feature-policy.https.sub.html]
+  expected: TIMEOUT
+  [Default "serial" feature policy ["self"\] disallows cross-origin iframes.]
+    expected: TIMEOUT
+
+  [Default "serial" feature policy ["self"\] allows same-origin iframes.]
+    expected: TIMEOUT
+
+  [Default "serial" feature policy ["self"\] allows the top-level document.]
+    expected: FAIL
+
diff --git a/testing/web-platform/meta/serial/serial-disabled-by-feature-policy.https.sub.html.ini b/testing/web-platform/meta/serial/serial-disabled-by-feature-policy.https.sub.html.ini
new file mode 100644
index 000000000000..7b4eee1cc179
--- /dev/null
+++ b/testing/web-platform/meta/serial/serial-disabled-by-feature-policy.https.sub.html.ini
@@ -0,0 +1,20 @@
+[serial-disabled-by-feature-policy.https.sub.html]
+  expected: TIMEOUT
+  [Feature-Policy header {"serial" : [\]} disallows cross-origin iframes.]
+    expected: TIMEOUT
+
+  [Feature-Policy header {"serial" : [\]} disallows same-origin iframes.]
+    expected: TIMEOUT
+
+  [Feature-Policy header {"serial" : [\]} disallows workers in cross-origin iframes.]
+    expected: TIMEOUT
+
+  [Feature-Policy header {"serial" : [\]} disallows workers in same-origin iframes.]
+    expected: TIMEOUT
+
+  [Inherited Feature-Policy header {"serial" : [\]} disallows dedicated workers.]
+    expected: FAIL
+
+  [Feature-Policy header {"serial" : [\]} disallows getPorts in the top-level document.]
+    expected: FAIL
+