diff --git a/test/intl402/Temporal/PlainDate/prototype/add/basic-hebrew.js b/test/intl402/Temporal/PlainDate/prototype/add/basic-hebrew.js
index 2853031bfb..8a87c37eb8 100644
--- a/test/intl402/Temporal/PlainDate/prototype/add/basic-hebrew.js
+++ b/test/intl402/Temporal/PlainDate/prototype/add/basic-hebrew.js
@@ -4,7 +4,7 @@
 /*---
 esid: sec-temporal.plaindate.prototype.add
 description: Basic addition and subtraction in the hebrew calendar
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 includes: [temporalHelpers.js]
 ---*/
 
diff --git a/test/intl402/Temporal/PlainDate/prototype/since/wrapping-at-end-of-month-buddhist.js b/test/intl402/Temporal/PlainDate/prototype/since/wrapping-at-end-of-month-buddhist.js
index af9cd16f2e..c802b9948a 100644
--- a/test/intl402/Temporal/PlainDate/prototype/since/wrapping-at-end-of-month-buddhist.js
+++ b/test/intl402/Temporal/PlainDate/prototype/since/wrapping-at-end-of-month-buddhist.js
@@ -5,7 +5,7 @@
 esid: sec-temporal.plaindate.prototype.since
 description: Tests balancing of days to months at end of month (buddhist calendar)
 includes: [temporalHelpers.js]
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 ---*/
 
 const calendar = "buddhist";
diff --git a/test/intl402/Temporal/PlainDate/prototype/since/wrapping-at-end-of-month-dangi.js b/test/intl402/Temporal/PlainDate/prototype/since/wrapping-at-end-of-month-dangi.js
index 3c9430db8b..b6d9842451 100644
--- a/test/intl402/Temporal/PlainDate/prototype/since/wrapping-at-end-of-month-dangi.js
+++ b/test/intl402/Temporal/PlainDate/prototype/since/wrapping-at-end-of-month-dangi.js
@@ -5,7 +5,7 @@
 esid: sec-temporal.plaindate.prototype.since
 description: Tests balancing of days to months at end of month (dangi calendar)
 includes: [temporalHelpers.js]
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 ---*/
 
 const calendar = "dangi";
diff --git a/test/intl402/Temporal/PlainDate/prototype/since/wrapping-at-end-of-month-gregory.js b/test/intl402/Temporal/PlainDate/prototype/since/wrapping-at-end-of-month-gregory.js
index b9b3991880..6970189529 100644
--- a/test/intl402/Temporal/PlainDate/prototype/since/wrapping-at-end-of-month-gregory.js
+++ b/test/intl402/Temporal/PlainDate/prototype/since/wrapping-at-end-of-month-gregory.js
@@ -5,7 +5,7 @@
 esid: sec-temporal.plaindate.prototype.since
 description: Tests balancing of days to months at end of month (gregory calendar)
 includes: [temporalHelpers.js]
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 ---*/
 
 const calendar = "gregory";
diff --git a/test/intl402/Temporal/PlainDate/prototype/since/wrapping-at-end-of-month-japanese.js b/test/intl402/Temporal/PlainDate/prototype/since/wrapping-at-end-of-month-japanese.js
index a2dcde310a..14c54cddd9 100644
--- a/test/intl402/Temporal/PlainDate/prototype/since/wrapping-at-end-of-month-japanese.js
+++ b/test/intl402/Temporal/PlainDate/prototype/since/wrapping-at-end-of-month-japanese.js
@@ -5,7 +5,7 @@
 esid: sec-temporal.plaindate.prototype.since
 description: Tests balancing of days to months at end of month (japanese calendar)
 includes: [temporalHelpers.js]
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 ---*/
 
 const calendar = "japanese";
diff --git a/test/intl402/Temporal/PlainDate/prototype/since/wrapping-at-end-of-month-roc.js b/test/intl402/Temporal/PlainDate/prototype/since/wrapping-at-end-of-month-roc.js
index 0aa56b3529..0b1dc7d04e 100644
--- a/test/intl402/Temporal/PlainDate/prototype/since/wrapping-at-end-of-month-roc.js
+++ b/test/intl402/Temporal/PlainDate/prototype/since/wrapping-at-end-of-month-roc.js
@@ -5,7 +5,7 @@
 esid: sec-temporal.plaindate.prototype.since
 description: Tests balancing of days to months at end of month (roc calendar)
 includes: [temporalHelpers.js]
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 ---*/
 
 const calendar = "roc";
diff --git a/test/intl402/Temporal/PlainDate/prototype/subtract/basic-hebrew.js b/test/intl402/Temporal/PlainDate/prototype/subtract/basic-hebrew.js
index c883326bdc..287de1c0c2 100644
--- a/test/intl402/Temporal/PlainDate/prototype/subtract/basic-hebrew.js
+++ b/test/intl402/Temporal/PlainDate/prototype/subtract/basic-hebrew.js
@@ -4,7 +4,7 @@
 /*---
 esid: sec-temporal.plaindate.prototype.subtract
 description: Basic addition and subtraction in the hebrew calendar
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 includes: [temporalHelpers.js]
 ---*/
 
diff --git a/test/intl402/Temporal/PlainDate/prototype/until/wrapping-at-end-of-month-buddhist.js b/test/intl402/Temporal/PlainDate/prototype/until/wrapping-at-end-of-month-buddhist.js
index d2f14a82e5..92c6874920 100644
--- a/test/intl402/Temporal/PlainDate/prototype/until/wrapping-at-end-of-month-buddhist.js
+++ b/test/intl402/Temporal/PlainDate/prototype/until/wrapping-at-end-of-month-buddhist.js
@@ -5,7 +5,7 @@
 esid: sec-temporal.plaindate.prototype.until
 description: Tests balancing of days to months at end of month (buddhist calendar)
 includes: [temporalHelpers.js]
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 ---*/
 
 const calendar = "buddhist";
diff --git a/test/intl402/Temporal/PlainDate/prototype/until/wrapping-at-end-of-month-dangi.js b/test/intl402/Temporal/PlainDate/prototype/until/wrapping-at-end-of-month-dangi.js
index d505f19adb..740f86de9c 100644
--- a/test/intl402/Temporal/PlainDate/prototype/until/wrapping-at-end-of-month-dangi.js
+++ b/test/intl402/Temporal/PlainDate/prototype/until/wrapping-at-end-of-month-dangi.js
@@ -5,7 +5,7 @@
 esid: sec-temporal.plaindate.prototype.until
 description: Tests balancing of days to months at end of month (dangi calendar)
 includes: [temporalHelpers.js]
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 ---*/
 
 const calendar = "dangi";
diff --git a/test/intl402/Temporal/PlainDate/prototype/until/wrapping-at-end-of-month-gregory.js b/test/intl402/Temporal/PlainDate/prototype/until/wrapping-at-end-of-month-gregory.js
index 338b95396b..68312867cd 100644
--- a/test/intl402/Temporal/PlainDate/prototype/until/wrapping-at-end-of-month-gregory.js
+++ b/test/intl402/Temporal/PlainDate/prototype/until/wrapping-at-end-of-month-gregory.js
@@ -5,7 +5,7 @@
 esid: sec-temporal.plaindate.prototype.until
 description: Tests balancing of days to months at end of month (gregory calendar)
 includes: [temporalHelpers.js]
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 ---*/
 
 const calendar = "gregory";
diff --git a/test/intl402/Temporal/PlainDate/prototype/until/wrapping-at-end-of-month-japanese.js b/test/intl402/Temporal/PlainDate/prototype/until/wrapping-at-end-of-month-japanese.js
index 0650fdf9b7..b8bafe446d 100644
--- a/test/intl402/Temporal/PlainDate/prototype/until/wrapping-at-end-of-month-japanese.js
+++ b/test/intl402/Temporal/PlainDate/prototype/until/wrapping-at-end-of-month-japanese.js
@@ -5,7 +5,7 @@
 esid: sec-temporal.plaindate.prototype.until
 description: Tests balancing of days to months at end of month (japanese calendar)
 includes: [temporalHelpers.js]
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 ---*/
 
 const calendar = "japanese";
diff --git a/test/intl402/Temporal/PlainDate/prototype/until/wrapping-at-end-of-month-roc.js b/test/intl402/Temporal/PlainDate/prototype/until/wrapping-at-end-of-month-roc.js
index 3635f7fdcf..0180080411 100644
--- a/test/intl402/Temporal/PlainDate/prototype/until/wrapping-at-end-of-month-roc.js
+++ b/test/intl402/Temporal/PlainDate/prototype/until/wrapping-at-end-of-month-roc.js
@@ -5,7 +5,7 @@
 esid: sec-temporal.plaindate.prototype.until
 description: Tests balancing of days to months at end of month (roc calendar)
 includes: [temporalHelpers.js]
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 ---*/
 
 const calendar = "roc";
diff --git a/test/intl402/Temporal/PlainDate/prototype/with/leap-months-dangi.js b/test/intl402/Temporal/PlainDate/prototype/with/leap-months-dangi.js
index c9492e5539..97a44a03bb 100644
--- a/test/intl402/Temporal/PlainDate/prototype/with/leap-months-dangi.js
+++ b/test/intl402/Temporal/PlainDate/prototype/with/leap-months-dangi.js
@@ -4,7 +4,7 @@
 /*---
 esid: sec-temporal.plaindate.prototype.with
 description: Check constraining leap months when year changes in dangi calendar
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 includes: [temporalHelpers.js]
 ---*/
 
diff --git a/test/intl402/Temporal/PlainDate/prototype/with/leap-months-hebrew.js b/test/intl402/Temporal/PlainDate/prototype/with/leap-months-hebrew.js
index f16e962f25..add4d080a3 100644
--- a/test/intl402/Temporal/PlainDate/prototype/with/leap-months-hebrew.js
+++ b/test/intl402/Temporal/PlainDate/prototype/with/leap-months-hebrew.js
@@ -4,7 +4,7 @@
 /*---
 esid: sec-temporal.plaindate.prototype.with
 description: Check constraining leap months when year changes in hebrew calendar
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 includes: [temporalHelpers.js]
 ---*/
 
diff --git a/test/intl402/Temporal/PlainDateTime/prototype/add/basic-hebrew.js b/test/intl402/Temporal/PlainDateTime/prototype/add/basic-hebrew.js
index d494d5e86e..9d79757536 100644
--- a/test/intl402/Temporal/PlainDateTime/prototype/add/basic-hebrew.js
+++ b/test/intl402/Temporal/PlainDateTime/prototype/add/basic-hebrew.js
@@ -4,7 +4,7 @@
 /*---
 esid: sec-temporal.plaindatetime.prototype.add
 description: Basic addition and subtraction in the hebrew calendar
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 includes: [temporalHelpers.js]
 ---*/
 
diff --git a/test/intl402/Temporal/PlainDateTime/prototype/since/wrapping-at-end-of-month-buddhist.js b/test/intl402/Temporal/PlainDateTime/prototype/since/wrapping-at-end-of-month-buddhist.js
index 522b016d37..b9d8ce43f5 100644
--- a/test/intl402/Temporal/PlainDateTime/prototype/since/wrapping-at-end-of-month-buddhist.js
+++ b/test/intl402/Temporal/PlainDateTime/prototype/since/wrapping-at-end-of-month-buddhist.js
@@ -5,7 +5,7 @@
 esid: sec-temporal.plaindatetime.prototype.since
 description: Tests balancing of days to months at end of month (buddhist calendar)
 includes: [temporalHelpers.js]
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 ---*/
 
 const calendar = "buddhist";
diff --git a/test/intl402/Temporal/PlainDateTime/prototype/since/wrapping-at-end-of-month-chinese.js b/test/intl402/Temporal/PlainDateTime/prototype/since/wrapping-at-end-of-month-chinese.js
index 3e9e823c1f..b8eca498fb 100644
--- a/test/intl402/Temporal/PlainDateTime/prototype/since/wrapping-at-end-of-month-chinese.js
+++ b/test/intl402/Temporal/PlainDateTime/prototype/since/wrapping-at-end-of-month-chinese.js
@@ -5,7 +5,7 @@
 esid: sec-temporal.plaindatetime.prototype.since
 description: Tests balancing of days to months at end of month (chinese calendar)
 includes: [temporalHelpers.js]
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 ---*/
 
 const calendar = "chinese";
diff --git a/test/intl402/Temporal/PlainDateTime/prototype/since/wrapping-at-end-of-month-dangi.js b/test/intl402/Temporal/PlainDateTime/prototype/since/wrapping-at-end-of-month-dangi.js
index 38173cc454..c3be5e9ddc 100644
--- a/test/intl402/Temporal/PlainDateTime/prototype/since/wrapping-at-end-of-month-dangi.js
+++ b/test/intl402/Temporal/PlainDateTime/prototype/since/wrapping-at-end-of-month-dangi.js
@@ -5,7 +5,7 @@
 esid: sec-temporal.plaindatetime.prototype.since
 description: Tests balancing of days to months at end of month (dangi calendar)
 includes: [temporalHelpers.js]
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 ---*/
 
 const calendar = "dangi";
diff --git a/test/intl402/Temporal/PlainDateTime/prototype/since/wrapping-at-end-of-month-gregory.js b/test/intl402/Temporal/PlainDateTime/prototype/since/wrapping-at-end-of-month-gregory.js
index e4177afbf4..1fc33f081a 100644
--- a/test/intl402/Temporal/PlainDateTime/prototype/since/wrapping-at-end-of-month-gregory.js
+++ b/test/intl402/Temporal/PlainDateTime/prototype/since/wrapping-at-end-of-month-gregory.js
@@ -5,7 +5,7 @@
 esid: sec-temporal.plaindatetime.prototype.since
 description: Tests balancing of days to months at end of month (gregory calendar)
 includes: [temporalHelpers.js]
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 ---*/
 
 const calendar = "gregory";
diff --git a/test/intl402/Temporal/PlainDateTime/prototype/since/wrapping-at-end-of-month-japanese.js b/test/intl402/Temporal/PlainDateTime/prototype/since/wrapping-at-end-of-month-japanese.js
index 72a8213ede..8ab3488fb3 100644
--- a/test/intl402/Temporal/PlainDateTime/prototype/since/wrapping-at-end-of-month-japanese.js
+++ b/test/intl402/Temporal/PlainDateTime/prototype/since/wrapping-at-end-of-month-japanese.js
@@ -5,7 +5,7 @@
 esid: sec-temporal.plaindatetime.prototype.since
 description: Tests balancing of days to months at end of month (japanese calendar)
 includes: [temporalHelpers.js]
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 ---*/
 
 const calendar = "japanese";
diff --git a/test/intl402/Temporal/PlainDateTime/prototype/since/wrapping-at-end-of-month-roc.js b/test/intl402/Temporal/PlainDateTime/prototype/since/wrapping-at-end-of-month-roc.js
index 7f77e2bf7a..39c2defcef 100644
--- a/test/intl402/Temporal/PlainDateTime/prototype/since/wrapping-at-end-of-month-roc.js
+++ b/test/intl402/Temporal/PlainDateTime/prototype/since/wrapping-at-end-of-month-roc.js
@@ -5,7 +5,7 @@
 esid: sec-temporal.plaindatetime.prototype.since
 description: Tests balancing of days to months at end of month (roc calendar)
 includes: [temporalHelpers.js]
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 ---*/
 
 const calendar = "roc";
diff --git a/test/intl402/Temporal/PlainDateTime/prototype/subtract/basic-hebrew.js b/test/intl402/Temporal/PlainDateTime/prototype/subtract/basic-hebrew.js
index b1bc1249d5..e6397dda42 100644
--- a/test/intl402/Temporal/PlainDateTime/prototype/subtract/basic-hebrew.js
+++ b/test/intl402/Temporal/PlainDateTime/prototype/subtract/basic-hebrew.js
@@ -4,7 +4,7 @@
 /*---
 esid: sec-temporal.plaindatetime.prototype.subtract
 description: Basic addition and subtraction in the hebrew calendar
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 includes: [temporalHelpers.js]
 ---*/
 
diff --git a/test/intl402/Temporal/PlainDateTime/prototype/until/wrapping-at-end-of-month-buddhist.js b/test/intl402/Temporal/PlainDateTime/prototype/until/wrapping-at-end-of-month-buddhist.js
index ef06e172de..a9cc1cbee2 100644
--- a/test/intl402/Temporal/PlainDateTime/prototype/until/wrapping-at-end-of-month-buddhist.js
+++ b/test/intl402/Temporal/PlainDateTime/prototype/until/wrapping-at-end-of-month-buddhist.js
@@ -5,7 +5,7 @@
 esid: sec-temporal.plaindatetime.prototype.until
 description: Tests balancing of days to months at end of month (buddhist calendar)
 includes: [temporalHelpers.js]
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 ---*/
 
 const calendar = "buddhist";
diff --git a/test/intl402/Temporal/PlainDateTime/prototype/until/wrapping-at-end-of-month-chinese.js b/test/intl402/Temporal/PlainDateTime/prototype/until/wrapping-at-end-of-month-chinese.js
index 66b3339a0e..81c5b2ff04 100644
--- a/test/intl402/Temporal/PlainDateTime/prototype/until/wrapping-at-end-of-month-chinese.js
+++ b/test/intl402/Temporal/PlainDateTime/prototype/until/wrapping-at-end-of-month-chinese.js
@@ -5,7 +5,7 @@
 esid: sec-temporal.plaindatetime.prototype.until
 description: Tests balancing of days to months at end of month (chinese calendar)
 includes: [temporalHelpers.js]
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 ---*/
 
 const calendar = "chinese";
diff --git a/test/intl402/Temporal/PlainDateTime/prototype/until/wrapping-at-end-of-month-dangi.js b/test/intl402/Temporal/PlainDateTime/prototype/until/wrapping-at-end-of-month-dangi.js
index 5ab7868922..e9fb1faa2d 100644
--- a/test/intl402/Temporal/PlainDateTime/prototype/until/wrapping-at-end-of-month-dangi.js
+++ b/test/intl402/Temporal/PlainDateTime/prototype/until/wrapping-at-end-of-month-dangi.js
@@ -5,7 +5,7 @@
 esid: sec-temporal.plaindatetime.prototype.until
 description: Tests balancing of days to months at end of month (dangi calendar)
 includes: [temporalHelpers.js]
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 ---*/
 
 const calendar = "dangi";
diff --git a/test/intl402/Temporal/PlainDateTime/prototype/until/wrapping-at-end-of-month-gregory.js b/test/intl402/Temporal/PlainDateTime/prototype/until/wrapping-at-end-of-month-gregory.js
index f1af5a6f83..ce388f5c82 100644
--- a/test/intl402/Temporal/PlainDateTime/prototype/until/wrapping-at-end-of-month-gregory.js
+++ b/test/intl402/Temporal/PlainDateTime/prototype/until/wrapping-at-end-of-month-gregory.js
@@ -5,7 +5,7 @@
 esid: sec-temporal.plaindatetime.prototype.until
 description: Tests balancing of days to months at end of month (gregory calendar)
 includes: [temporalHelpers.js]
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 ---*/
 
 const calendar = "gregory";
diff --git a/test/intl402/Temporal/PlainDateTime/prototype/until/wrapping-at-end-of-month-japanese.js b/test/intl402/Temporal/PlainDateTime/prototype/until/wrapping-at-end-of-month-japanese.js
index 3d75a66754..fb045223b5 100644
--- a/test/intl402/Temporal/PlainDateTime/prototype/until/wrapping-at-end-of-month-japanese.js
+++ b/test/intl402/Temporal/PlainDateTime/prototype/until/wrapping-at-end-of-month-japanese.js
@@ -5,7 +5,7 @@
 esid: sec-temporal.plaindatetime.prototype.until
 description: Tests balancing of days to months at end of month (japanese calendar)
 includes: [temporalHelpers.js]
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 ---*/
 
 const calendar = "japanese";
diff --git a/test/intl402/Temporal/PlainDateTime/prototype/until/wrapping-at-end-of-month-roc.js b/test/intl402/Temporal/PlainDateTime/prototype/until/wrapping-at-end-of-month-roc.js
index 9e1e1ea2a8..8cd88ed1ec 100644
--- a/test/intl402/Temporal/PlainDateTime/prototype/until/wrapping-at-end-of-month-roc.js
+++ b/test/intl402/Temporal/PlainDateTime/prototype/until/wrapping-at-end-of-month-roc.js
@@ -5,7 +5,7 @@
 esid: sec-temporal.plaindatetime.prototype.until
 description: Tests balancing of days to months at end of month (roc calendar)
 includes: [temporalHelpers.js]
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 ---*/
 
 const calendar = "roc";
diff --git a/test/intl402/Temporal/PlainDateTime/prototype/with/leap-months-chinese.js b/test/intl402/Temporal/PlainDateTime/prototype/with/leap-months-chinese.js
index f31d787cee..f1e285f3f1 100644
--- a/test/intl402/Temporal/PlainDateTime/prototype/with/leap-months-chinese.js
+++ b/test/intl402/Temporal/PlainDateTime/prototype/with/leap-months-chinese.js
@@ -4,7 +4,7 @@
 /*---
 esid: sec-temporal.plaindatetime.prototype.with
 description: Check constraining leap months when year changes in chinese calendar
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 includes: [temporalHelpers.js]
 ---*/
 
diff --git a/test/intl402/Temporal/PlainDateTime/prototype/with/leap-months-dangi.js b/test/intl402/Temporal/PlainDateTime/prototype/with/leap-months-dangi.js
index f922dc60be..ec383e0361 100644
--- a/test/intl402/Temporal/PlainDateTime/prototype/with/leap-months-dangi.js
+++ b/test/intl402/Temporal/PlainDateTime/prototype/with/leap-months-dangi.js
@@ -4,7 +4,7 @@
 /*---
 esid: sec-temporal.plaindatetime.prototype.with
 description: Check constraining leap months when year changes in dangi calendar
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 includes: [temporalHelpers.js]
 ---*/
 
diff --git a/test/intl402/Temporal/PlainDateTime/prototype/with/leap-months-hebrew.js b/test/intl402/Temporal/PlainDateTime/prototype/with/leap-months-hebrew.js
index 545c85ba09..b70ddd96d5 100644
--- a/test/intl402/Temporal/PlainDateTime/prototype/with/leap-months-hebrew.js
+++ b/test/intl402/Temporal/PlainDateTime/prototype/with/leap-months-hebrew.js
@@ -4,7 +4,7 @@
 /*---
 esid: sec-temporal.plaindatetime.prototype.with
 description: Check constraining leap months when year changes in hebrew calendar
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 includes: [temporalHelpers.js]
 ---*/
 
diff --git a/test/intl402/Temporal/ZonedDateTime/prototype/add/basic-hebrew.js b/test/intl402/Temporal/ZonedDateTime/prototype/add/basic-hebrew.js
index 62fb0ad294..13ac460a06 100644
--- a/test/intl402/Temporal/ZonedDateTime/prototype/add/basic-hebrew.js
+++ b/test/intl402/Temporal/ZonedDateTime/prototype/add/basic-hebrew.js
@@ -4,7 +4,7 @@
 /*---
 esid: sec-temporal.zoneddatetime.prototype.add
 description: Basic addition and subtraction in the hebrew calendar
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 includes: [temporalHelpers.js]
 ---*/
 
diff --git a/test/intl402/Temporal/ZonedDateTime/prototype/since/wrapping-at-end-of-month-buddhist.js b/test/intl402/Temporal/ZonedDateTime/prototype/since/wrapping-at-end-of-month-buddhist.js
index 45b98b34da..0b943f00ff 100644
--- a/test/intl402/Temporal/ZonedDateTime/prototype/since/wrapping-at-end-of-month-buddhist.js
+++ b/test/intl402/Temporal/ZonedDateTime/prototype/since/wrapping-at-end-of-month-buddhist.js
@@ -5,7 +5,7 @@
 esid: sec-temporal.zoneddatetime.prototype.since
 description: Tests balancing of days to months at end of month (buddhist calendar)
 includes: [temporalHelpers.js]
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 ---*/
 
 const calendar = "buddhist";
diff --git a/test/intl402/Temporal/ZonedDateTime/prototype/since/wrapping-at-end-of-month-chinese.js b/test/intl402/Temporal/ZonedDateTime/prototype/since/wrapping-at-end-of-month-chinese.js
index 692de48d37..010826b68c 100644
--- a/test/intl402/Temporal/ZonedDateTime/prototype/since/wrapping-at-end-of-month-chinese.js
+++ b/test/intl402/Temporal/ZonedDateTime/prototype/since/wrapping-at-end-of-month-chinese.js
@@ -5,7 +5,7 @@
 esid: sec-temporal.zoneddatetime.prototype.since
 description: Tests balancing of days to months at end of month (chinese calendar)
 includes: [temporalHelpers.js]
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 ---*/
 
 const calendar = "chinese";
diff --git a/test/intl402/Temporal/ZonedDateTime/prototype/since/wrapping-at-end-of-month-dangi.js b/test/intl402/Temporal/ZonedDateTime/prototype/since/wrapping-at-end-of-month-dangi.js
index 87250d3046..60536a32c6 100644
--- a/test/intl402/Temporal/ZonedDateTime/prototype/since/wrapping-at-end-of-month-dangi.js
+++ b/test/intl402/Temporal/ZonedDateTime/prototype/since/wrapping-at-end-of-month-dangi.js
@@ -5,7 +5,7 @@
 esid: sec-temporal.zoneddatetime.prototype.since
 description: Tests balancing of days to months at end of month (dangi calendar)
 includes: [temporalHelpers.js]
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 ---*/
 
 const calendar = "dangi";
diff --git a/test/intl402/Temporal/ZonedDateTime/prototype/since/wrapping-at-end-of-month-gregory.js b/test/intl402/Temporal/ZonedDateTime/prototype/since/wrapping-at-end-of-month-gregory.js
index 3c49c90abb..cacb3970e7 100644
--- a/test/intl402/Temporal/ZonedDateTime/prototype/since/wrapping-at-end-of-month-gregory.js
+++ b/test/intl402/Temporal/ZonedDateTime/prototype/since/wrapping-at-end-of-month-gregory.js
@@ -5,7 +5,7 @@
 esid: sec-temporal.zoneddatetime.prototype.since
 description: Tests balancing of days to months at end of month (gregory calendar)
 includes: [temporalHelpers.js]
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 ---*/
 
 const calendar = "gregory";
diff --git a/test/intl402/Temporal/ZonedDateTime/prototype/since/wrapping-at-end-of-month-japanese.js b/test/intl402/Temporal/ZonedDateTime/prototype/since/wrapping-at-end-of-month-japanese.js
index 114e43f4bc..096fc5dd60 100644
--- a/test/intl402/Temporal/ZonedDateTime/prototype/since/wrapping-at-end-of-month-japanese.js
+++ b/test/intl402/Temporal/ZonedDateTime/prototype/since/wrapping-at-end-of-month-japanese.js
@@ -5,7 +5,7 @@
 esid: sec-temporal.zoneddatetime.prototype.since
 description: Tests balancing of days to months at end of month (japanese calendar)
 includes: [temporalHelpers.js]
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 ---*/
 
 const calendar = "japanese";
diff --git a/test/intl402/Temporal/ZonedDateTime/prototype/since/wrapping-at-end-of-month-roc.js b/test/intl402/Temporal/ZonedDateTime/prototype/since/wrapping-at-end-of-month-roc.js
index 48b180e8d5..606c89007d 100644
--- a/test/intl402/Temporal/ZonedDateTime/prototype/since/wrapping-at-end-of-month-roc.js
+++ b/test/intl402/Temporal/ZonedDateTime/prototype/since/wrapping-at-end-of-month-roc.js
@@ -5,7 +5,7 @@
 esid: sec-temporal.zoneddatetime.prototype.since
 description: Tests balancing of days to months at end of month (roc calendar)
 includes: [temporalHelpers.js]
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 ---*/
 
 const calendar = "roc";
diff --git a/test/intl402/Temporal/ZonedDateTime/prototype/subtract/basic-hebrew.js b/test/intl402/Temporal/ZonedDateTime/prototype/subtract/basic-hebrew.js
index 449c9dd816..24a81b5617 100644
--- a/test/intl402/Temporal/ZonedDateTime/prototype/subtract/basic-hebrew.js
+++ b/test/intl402/Temporal/ZonedDateTime/prototype/subtract/basic-hebrew.js
@@ -4,7 +4,7 @@
 /*---
 esid: sec-temporal.zoneddatetime.prototype.subtract
 description: Basic addition and subtraction in the hebrew calendar
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 includes: [temporalHelpers.js]
 ---*/
 
diff --git a/test/intl402/Temporal/ZonedDateTime/prototype/until/wrapping-at-end-of-month-buddhist.js b/test/intl402/Temporal/ZonedDateTime/prototype/until/wrapping-at-end-of-month-buddhist.js
index 9fd200a648..541ef0a4b1 100644
--- a/test/intl402/Temporal/ZonedDateTime/prototype/until/wrapping-at-end-of-month-buddhist.js
+++ b/test/intl402/Temporal/ZonedDateTime/prototype/until/wrapping-at-end-of-month-buddhist.js
@@ -5,7 +5,7 @@
 esid: sec-temporal.zoneddatetime.prototype.until
 description: Tests balancing of days to months at end of month (buddhist calendar)
 includes: [temporalHelpers.js]
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 ---*/
 
 const calendar = "buddhist";
diff --git a/test/intl402/Temporal/ZonedDateTime/prototype/until/wrapping-at-end-of-month-chinese.js b/test/intl402/Temporal/ZonedDateTime/prototype/until/wrapping-at-end-of-month-chinese.js
index 31a8c31e5d..0315299e4a 100644
--- a/test/intl402/Temporal/ZonedDateTime/prototype/until/wrapping-at-end-of-month-chinese.js
+++ b/test/intl402/Temporal/ZonedDateTime/prototype/until/wrapping-at-end-of-month-chinese.js
@@ -5,7 +5,7 @@
 esid: sec-temporal.zoneddatetime.prototype.until
 description: Tests balancing of days to months at end of month (chinese calendar)
 includes: [temporalHelpers.js]
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 ---*/
 
 const calendar = "chinese";
diff --git a/test/intl402/Temporal/ZonedDateTime/prototype/until/wrapping-at-end-of-month-dangi.js b/test/intl402/Temporal/ZonedDateTime/prototype/until/wrapping-at-end-of-month-dangi.js
index 486e60b429..7433245af2 100644
--- a/test/intl402/Temporal/ZonedDateTime/prototype/until/wrapping-at-end-of-month-dangi.js
+++ b/test/intl402/Temporal/ZonedDateTime/prototype/until/wrapping-at-end-of-month-dangi.js
@@ -5,7 +5,7 @@
 esid: sec-temporal.zoneddatetime.prototype.until
 description: Tests balancing of days to months at end of month (dangi calendar)
 includes: [temporalHelpers.js]
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 ---*/
 
 const calendar = "dangi";
diff --git a/test/intl402/Temporal/ZonedDateTime/prototype/until/wrapping-at-end-of-month-gregory.js b/test/intl402/Temporal/ZonedDateTime/prototype/until/wrapping-at-end-of-month-gregory.js
index a91cecf14f..20e9557ac4 100644
--- a/test/intl402/Temporal/ZonedDateTime/prototype/until/wrapping-at-end-of-month-gregory.js
+++ b/test/intl402/Temporal/ZonedDateTime/prototype/until/wrapping-at-end-of-month-gregory.js
@@ -5,7 +5,7 @@
 esid: sec-temporal.zoneddatetime.prototype.until
 description: Tests balancing of days to months at end of month (gregory calendar)
 includes: [temporalHelpers.js]
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 ---*/
 
 const calendar = "gregory";
diff --git a/test/intl402/Temporal/ZonedDateTime/prototype/until/wrapping-at-end-of-month-japanese.js b/test/intl402/Temporal/ZonedDateTime/prototype/until/wrapping-at-end-of-month-japanese.js
index e0f129eb73..a9b55c3ab2 100644
--- a/test/intl402/Temporal/ZonedDateTime/prototype/until/wrapping-at-end-of-month-japanese.js
+++ b/test/intl402/Temporal/ZonedDateTime/prototype/until/wrapping-at-end-of-month-japanese.js
@@ -5,7 +5,7 @@
 esid: sec-temporal.zoneddatetime.prototype.until
 description: Tests balancing of days to months at end of month (japanese calendar)
 includes: [temporalHelpers.js]
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 ---*/
 
 const calendar = "japanese";
diff --git a/test/intl402/Temporal/ZonedDateTime/prototype/until/wrapping-at-end-of-month-roc.js b/test/intl402/Temporal/ZonedDateTime/prototype/until/wrapping-at-end-of-month-roc.js
index d789a19007..f569484688 100644
--- a/test/intl402/Temporal/ZonedDateTime/prototype/until/wrapping-at-end-of-month-roc.js
+++ b/test/intl402/Temporal/ZonedDateTime/prototype/until/wrapping-at-end-of-month-roc.js
@@ -5,7 +5,7 @@
 esid: sec-temporal.zoneddatetime.prototype.until
 description: Tests balancing of days to months at end of month (roc calendar)
 includes: [temporalHelpers.js]
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 ---*/
 
 const calendar = "roc";
diff --git a/test/intl402/Temporal/ZonedDateTime/prototype/with/leap-months-chinese.js b/test/intl402/Temporal/ZonedDateTime/prototype/with/leap-months-chinese.js
index 02a2ae2792..f95d9d7eb2 100644
--- a/test/intl402/Temporal/ZonedDateTime/prototype/with/leap-months-chinese.js
+++ b/test/intl402/Temporal/ZonedDateTime/prototype/with/leap-months-chinese.js
@@ -4,7 +4,7 @@
 /*---
 esid: sec-temporal.zoneddatetime.prototype.with
 description: Check constraining leap months when year changes in chinese calendar
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 includes: [temporalHelpers.js]
 ---*/
 
diff --git a/test/intl402/Temporal/ZonedDateTime/prototype/with/leap-months-dangi.js b/test/intl402/Temporal/ZonedDateTime/prototype/with/leap-months-dangi.js
index a7a18ace5f..5e296ef714 100644
--- a/test/intl402/Temporal/ZonedDateTime/prototype/with/leap-months-dangi.js
+++ b/test/intl402/Temporal/ZonedDateTime/prototype/with/leap-months-dangi.js
@@ -4,7 +4,7 @@
 /*---
 esid: sec-temporal.zoneddatetime.prototype.with
 description: Check constraining leap months when year changes in dangi calendar
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 includes: [temporalHelpers.js]
 ---*/
 
diff --git a/test/intl402/Temporal/ZonedDateTime/prototype/with/leap-months-hebrew.js b/test/intl402/Temporal/ZonedDateTime/prototype/with/leap-months-hebrew.js
index 19de9d8006..2d82bcec6f 100644
--- a/test/intl402/Temporal/ZonedDateTime/prototype/with/leap-months-hebrew.js
+++ b/test/intl402/Temporal/ZonedDateTime/prototype/with/leap-months-hebrew.js
@@ -4,7 +4,7 @@
 /*---
 esid: sec-temporal.zoneddatetime.prototype.with
 description: Check constraining leap months when year changes in hebrew calendar
-features: [Temporal]
+features: [Temporal, Intl.Era-monthcode]
 includes: [temporalHelpers.js]
 ---*/