diff --git a/README.md b/README.md
index 0c215b58..c88777a1 100644
--- a/README.md
+++ b/README.md
@@ -62,6 +62,8 @@ Depending on the advancement of the underlying specification, the JSON object ca
 * `edDraft`: when the specification is unknown to the [W3C API](https://w3c.github.io/w3c-api/) and to [Specref](https://www.specref.org/), or when these APIs do not know the URL of the Editor's Draft for the specification, the `edDraft` property should contain the URL of the Editor's Draft of the specification.
 * `wgs`: when the specification is unknown to the [W3C API](https://w3c.github.io/w3c-api/) and to [Specref](https://www.specref.org/), the `wgs` property should be an array of objects describing the groups that are producing the spec; each such object should have a `url` property with a link to the group's home page, and a `label` property with the name of the group.
 * `publisher`: the organization that published the specification. The framework automatically computes the publisher for W3C, WHATWG, and IETF specifications.
+* `informative`: when the specification is unknown to the [W3C API](https://w3c.github.io/w3c-api/), set the `informative` property to `true` to tell the framework that it only contains informative content or that it will be (or has been) published as a Group Note and not as a Recommendation.
+* `evergreen`: from time to time, specifications remain as drafts indefinitely but are continuously updated and can be considered stable whenever a new version is published. Set the `evergreen` property to `true` when the specification can always be used as a reference, no matter where it is on the Recommendation track.
 
 Here is an example of a JSON file that describes the "Intersection Observer" specification:
 ```json
diff --git a/js/generate-utils.js b/js/generate-utils.js
index 42d070bd..66b238c3 100644
--- a/js/generate-utils.js
+++ b/js/generate-utils.js
@@ -301,7 +301,7 @@ const createSpecCell = function (column, featureId, featureName, specInfo, implI
 const createMaturityCell = function (column, featureId, featureName, specInfo, implInfo, translate, lang, pos) {
   // Render maturity info
   let cell = document.createElement('td');
-  let maturityInfo = maturityData(specInfo);
+  let maturityInfo = maturityData(specInfo, translate);
   fillCell(cell, maturityInfo.maturity, maturityInfo.maturityIcon);
   cell.classList.add('maturity');
   return cell;
@@ -388,16 +388,29 @@ const fillCell = function (el, data, image) {
 };
 
 
-const maturityData = function (spec) {
+const maturityData = function (spec, translate) {
+  let iconSrc =
+    'https://www.w3.org/2013/09/wpd-rectrack-icons/' +
+    (spec.evergreen ? 'REF' : spec.status).toLowerCase() +
+    (spec.informative ? '-informative' : '') +
+    '.svg';
+  let label =
+    (spec.evergreen ? 'REF' : spec.status) +
+    (spec.informative ? ' - informative' : '');
+  let localizedLabel =
+    translate('maturity', spec.evergreen ? 'REF' : spec.status) +
+    (spec.informative ?
+      translate('maturity', ' - ') + translate('maturity', 'informative') :
+      '');
   return {
     maturity: {
-      label: spec.status,
+      label: label,
+      localizedLabel: localizedLabel,
       level: maturityLevels[spec.status] || 'low'
     },
     maturityIcon: !spec.status ? null : {
-      src: 'https://www.w3.org/2013/09/wpd-rectrack-icons/' +
-        spec.status.toLowerCase() + '.svg',
-      alt: spec.status,
+      src: iconSrc,
+      alt: localizedLabel,
       width: 50,
       height: 50
     }
diff --git a/js/translations.json b/js/translations.json
index c76c6860..0ecbbf5d 100644
--- a/js/translations.json
+++ b/js/translations.json
@@ -32,5 +32,16 @@
     "qq": "QQ Browser",
     "samsunginternet": "Samsung Internet",
     "uc": "UC Browser"
+  },
+  "maturity": {
+    "ED": "Editor's Draft",
+    "WD": "Working Draft",
+    "LS": "Living Standard",
+    "CR": "Candidate Recommendation",
+    "PR": "Proposed Recommendation",
+    "REC": "Recommendation",
+    "Retired": "Retired",
+    "NOTE": "Group Note",
+    "REF": "Reference"
   }
 }
\ No newline at end of file
diff --git a/tools/extract-spec-data.js b/tools/extract-spec-data.js
index a76da1fa..8d1a03de 100644
--- a/tools/extract-spec-data.js
+++ b/tools/extract-spec-data.js
@@ -262,7 +262,8 @@ async function extractSpecData(files, config) {
         edDraft: latestInfo['editor-draft'],
         title: latestInfo.title,
         status: latestInfo.status,
-        publisher: 'W3C'
+        publisher: 'W3C',
+        informative: latestInfo.informative || !latestInfo['rec-track']
       };
       let deliverersJson = await fetchJson(
         latestInfo._links.deliverers.href + `?embed=1`,
@@ -283,7 +284,8 @@ async function extractSpecData(files, config) {
       title: spec.data.title || trInfo.title || lookupInfo.title,
       status: spec.data.status || trInfo.status || lookupInfo.status || 'ED',
       deliveredBy: spec.data.wgs || trInfo.deliveredBy || lookupInfo.deliveredBy || [],
-      publisher: spec.data.publisher || trInfo.publisher || lookupInfo.publisher
+      publisher: spec.data.publisher || trInfo.publisher || lookupInfo.publisher,
+      informative: spec.data.informative || trInfo.informative
     };
 
     // Spec must have a title, either retrieved from Specref or defined in
diff --git a/tools/spec.jsons b/tools/spec.jsons
index 493eeb19..5cbab811 100644
--- a/tools/spec.jsons
+++ b/tools/spec.jsons
@@ -141,6 +141,14 @@
       "description": "The URL of the Living Standard. Deprecated. Use `url` instead.",
       "type": "string",
       "format": "uri"
+    },
+    "evergreen": {
+      "description": "The spec may be a draft but is continuously updated and suitable for use as reference.",
+      "type": "boolean"
+    },
+    "informative": {
+      "description": "The spec contains only informative content or is/will be published as a Note.",
+      "type": "boolean"
     }
   }
 }
diff --git a/tools/tr.jsons b/tools/tr.jsons
index 63120da7..3dff4ab4 100644
--- a/tools/tr.jsons
+++ b/tools/tr.jsons
@@ -63,6 +63,14 @@
         "description": "The organization that published the specification.",
         "type": "string",
         "minLength": 1
+      },
+      "evergreen": {
+        "description": "The spec may be a draft but is continuously updated and suitable for use as reference.",
+        "type": "boolean"
+      },
+      "informative": {
+        "description": "The spec contains only informative content or is/will be published as a Note.",
+        "type": "boolean"
       }
     }
   }