diff --git a/tools/cldr-apps/js/src/esm/cldrSurvey.mjs b/tools/cldr-apps/js/src/esm/cldrSurvey.mjs
index 48d4591d11a..2d348f10316 100644
--- a/tools/cldr-apps/js/src/esm/cldrSurvey.mjs
+++ b/tools/cldr-apps/js/src/esm/cldrSurvey.mjs
@@ -752,8 +752,15 @@ function testsToHtml(tests) {
   if (!tests) {
     return newHtml;
   }
+  var hadEntireLocale = false;
+
   for (var i = 0; i < tests.length; i++) {
     var testItem = tests[i];
+    const { entireLocale } = testItem;
+    if (entireLocale) {
+      hadEntireLocale = true;
+      continue;
+    }
     newHtml += "<p class='trInfo tr_" + testItem.type;
     if (testItem.type == "Warning") {
       newHtml += " alert alert-warning fix-popover-help";
@@ -780,7 +787,12 @@ function testsToHtml(tests) {
       newHtml += ' <a href="' + testItem.subtypeUrl + '">(how to fix…)</a>';
     }
 
-    newHtml += "</p>";
+    newHtml += "</p>\n";
+  }
+  if (hadEntireLocale) {
+    newHtml += `<p class='trInfo tr_Warning alert alert-warning fix-popover-help'>See also <a href='#r_supplemental/${cldrStatus.getCurrentLocale()}//'>${cldrText.get(
+      "special_r_supplemental"
+    )}</a></p>\n`;
   }
   return newHtml;
 }
diff --git a/tools/cldr-apps/js/src/esm/cldrText.mjs b/tools/cldr-apps/js/src/esm/cldrText.mjs
index e4de7986805..b27a54ebcf0 100644
--- a/tools/cldr-apps/js/src/esm/cldrText.mjs
+++ b/tools/cldr-apps/js/src/esm/cldrText.mjs
@@ -495,6 +495,7 @@ const strings = {
   special_r_datetime: "Datetime",
   special_r_zones: "Zones",
   special_r_personnames: "Person Names",
+  special_r_supplemental: "Entire Locale Errors",
   special_recent_activity: "Recent Activity",
   special_retry: "Retry",
   special_retry_inplace: "Retry",
diff --git a/tools/cldr-apps/src/main/java/org/unicode/cldr/web/SubtypeToURLMap.java b/tools/cldr-apps/src/main/java/org/unicode/cldr/web/SubtypeToURLMap.java
index b6ed8634989..3b3cdc41591 100644
--- a/tools/cldr-apps/src/main/java/org/unicode/cldr/web/SubtypeToURLMap.java
+++ b/tools/cldr-apps/src/main/java/org/unicode/cldr/web/SubtypeToURLMap.java
@@ -36,13 +36,14 @@
 import org.jsoup.Jsoup;
 import org.jsoup.nodes.Document;
 import org.unicode.cldr.test.CheckCLDR.CheckStatus.Subtype;
+import org.unicode.cldr.test.CheckCLDR.SubtypeToURLProvider;
 import org.unicode.cldr.util.CLDRCacheDir;
 import org.unicode.cldr.util.CLDRTool;
 
 @CLDRTool(
         alias = "subtype-to-url-map",
         description = "parse each of the params as a path or URL to a subtype map and check.")
-public class SubtypeToURLMap {
+public class SubtypeToURLMap implements SubtypeToURLProvider {
     static final Logger logger = SurveyLog.forClass(SubtypeToURLMap.class);
     /**
      * Little tool for validating input data.
@@ -514,4 +515,9 @@ public static String forSubtype(Subtype subtype) {
         if (SubtypeToURLMapHelper.INSTANCE == null) return null;
         return SubtypeToURLMapHelper.INSTANCE.get(subtype);
     }
+
+    @Override
+    public String apply(Subtype t) {
+        return forSubtype(t);
+    }
 }
diff --git a/tools/cldr-apps/src/main/java/org/unicode/cldr/web/SurveyJSONWrapper.java b/tools/cldr-apps/src/main/java/org/unicode/cldr/web/SurveyJSONWrapper.java
index 90d340b4ee6..31c14886316 100644
--- a/tools/cldr-apps/src/main/java/org/unicode/cldr/web/SurveyJSONWrapper.java
+++ b/tools/cldr-apps/src/main/java/org/unicode/cldr/web/SurveyJSONWrapper.java
@@ -67,6 +67,7 @@ public static JSONObject wrap(CheckStatus status) throws JSONException {
                     put("subtype", subtype.name());
                     put("subtypeUrl", SubtypeToURLMap.forSubtype(subtype)); // could be null.
                 }
+                put("entireLocale", cs.getEntireLocale());
             }
         };
     }
diff --git a/tools/cldr-apps/src/main/java/org/unicode/cldr/web/api/ReportAPI.java b/tools/cldr-apps/src/main/java/org/unicode/cldr/web/api/ReportAPI.java
index 147d8f3d6f4..7973d09ecc0 100644
--- a/tools/cldr-apps/src/main/java/org/unicode/cldr/web/api/ReportAPI.java
+++ b/tools/cldr-apps/src/main/java/org/unicode/cldr/web/api/ReportAPI.java
@@ -32,9 +32,11 @@
 import org.unicode.cldr.util.VoterReportStatus.ReportAcceptability;
 import org.unicode.cldr.util.VoterReportStatus.ReportId;
 import org.unicode.cldr.web.CookieSession;
+import org.unicode.cldr.web.DataPage;
 import org.unicode.cldr.web.ReportsDB;
 import org.unicode.cldr.web.ReportsDB.UserReport;
 import org.unicode.cldr.web.STFactory;
+import org.unicode.cldr.web.SubtypeToURLMap;
 import org.unicode.cldr.web.SurveyAjax;
 import org.unicode.cldr.web.SurveyMain;
 import org.unicode.cldr.web.UserRegistry;
@@ -414,10 +416,14 @@ public Response getReportOutput(
 
     private String writeReport(ReportId report, CLDRLocale loc) throws IOException {
         final Writer w = new StringWriter();
+        final STFactory stf = CookieSession.sm.getSTFactory();
         final Chart chart = Chart.forReport(report, loc.getBaseName());
         if (chart != null) {
-            final STFactory stf = CookieSession.sm.getSTFactory();
-            chart.writeContents(w, stf);
+            chart.writeContents(
+                    w,
+                    stf,
+                    stf.getTestResult(loc, DataPage.getSimpleOptions(loc)),
+                    SubtypeToURLMap.getInstance());
         } else {
             switch (report) {
                     // "Old Three" reports
diff --git a/tools/cldr-apps/src/main/java/org/unicode/cldr/web/api/VoteAPI.java b/tools/cldr-apps/src/main/java/org/unicode/cldr/web/api/VoteAPI.java
index 544f482d433..b0ec3882a92 100644
--- a/tools/cldr-apps/src/main/java/org/unicode/cldr/web/api/VoteAPI.java
+++ b/tools/cldr-apps/src/main/java/org/unicode/cldr/web/api/VoteAPI.java
@@ -352,6 +352,7 @@ public static final class CheckStatusSummary {
         public String subtypeUrl;
         public Phase phase;
         public String cause;
+        public boolean entireLocale;
 
         public CheckStatusSummary(CheckStatus checkStatus) {
             this.message = checkStatus.getMessage();
@@ -366,6 +367,7 @@ public CheckStatusSummary(CheckStatus checkStatus) {
             if (this.subtype != null) {
                 this.subtypeUrl = SubtypeToURLMap.forSubtype(this.subtype); // could be null.
             }
+            this.entireLocale = checkStatus.getEntireLocale();
         }
     }
 }
diff --git a/tools/cldr-code/src/main/java/org/unicode/cldr/test/CheckCLDR.java b/tools/cldr-code/src/main/java/org/unicode/cldr/test/CheckCLDR.java
index 18588668af8..d5caed38a89 100644
--- a/tools/cldr-code/src/main/java/org/unicode/cldr/test/CheckCLDR.java
+++ b/tools/cldr-code/src/main/java/org/unicode/cldr/test/CheckCLDR.java
@@ -26,6 +26,7 @@
 import java.util.Map;
 import java.util.Set;
 import java.util.TreeSet;
+import java.util.function.Function;
 import java.util.logging.Logger;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
@@ -786,6 +787,12 @@ protected boolean accept(List<CheckStatus> result) {
 
     Options cachedOptions = null;
 
+    /**
+     * abstract interface for mapping from a Subtype to a "more details" URL. see
+     * org.unicode.cldr.web.SubtypeToURLMap
+     */
+    public interface SubtypeToURLProvider extends Function<Subtype, String> {}
+
     /** Status value returned from check */
     public static class CheckStatus implements Comparable<CheckStatus> {
         public static final Type alertType = Type.Comment,
@@ -1126,7 +1133,7 @@ public static boolean hasType(List<CheckStatus> result, Type type) {
         /**
          * @returns true if this status applies to the entire locale, not a single path
          */
-        public boolean isEntireLocale() {
+        public boolean getEntireLocale() {
             return entireLocale;
         }
 
diff --git a/tools/cldr-code/src/main/java/org/unicode/cldr/test/ConsoleCheckCLDR.java b/tools/cldr-code/src/main/java/org/unicode/cldr/test/ConsoleCheckCLDR.java
index 506b30fd150..6bf84dfc85c 100644
--- a/tools/cldr-code/src/main/java/org/unicode/cldr/test/ConsoleCheckCLDR.java
+++ b/tools/cldr-code/src/main/java/org/unicode/cldr/test/ConsoleCheckCLDR.java
@@ -777,7 +777,7 @@ public static void main(String[] args) throws Throwable {
                             boolean showedOne = false;
                             for (Iterator<CheckStatus> it3 = result.iterator(); it3.hasNext(); ) {
                                 CheckStatus status = it3.next();
-                                if (status.isEntireLocale()) {
+                                if (status.getEntireLocale()) {
                                     possibleProblems.add(status);
                                     continue;
                                 }
diff --git a/tools/cldr-code/src/main/java/org/unicode/cldr/tool/Chart.java b/tools/cldr-code/src/main/java/org/unicode/cldr/tool/Chart.java
index 2c34553da69..080e361c8ad 100644
--- a/tools/cldr-code/src/main/java/org/unicode/cldr/tool/Chart.java
+++ b/tools/cldr-code/src/main/java/org/unicode/cldr/tool/Chart.java
@@ -9,6 +9,8 @@
 import java.io.Writer;
 import java.util.Arrays;
 import java.util.stream.Collectors;
+import org.unicode.cldr.test.CheckCLDR;
+import org.unicode.cldr.test.TestCache.TestResultBundle;
 import org.unicode.cldr.tool.FormattedFileWriter.Anchors;
 import org.unicode.cldr.util.CLDRConfig;
 import org.unicode.cldr.util.CLDRFile;
@@ -158,6 +160,18 @@ public void writeContents(Writer pw, Factory factory) throws IOException {
         throw new IllegalArgumentException("Not implemented yet");
     }
 
+    /**
+     * extended function with some additional parameters subclasses may optionally implement this.
+     */
+    public void writeContents(
+            Writer pw,
+            Factory factory,
+            TestResultBundle bundle,
+            CheckCLDR.SubtypeToURLProvider urlProvider)
+            throws IOException {
+        this.writeContents(pw, factory);
+    }
+
     private static final class AnalyticsHelper {
         private static final AnalyticsHelper INSTANCE = new AnalyticsHelper();
 
@@ -220,6 +234,8 @@ public static Chart forReport(final ReportId report, final String locale) {
         switch (report) {
             case personnames:
                 return new ChartPersonName(locale);
+            case supplemental:
+                return new ChartSupplemental(locale);
             default:
                 return null;
         }
diff --git a/tools/cldr-code/src/main/java/org/unicode/cldr/tool/ChartSupplemental.java b/tools/cldr-code/src/main/java/org/unicode/cldr/tool/ChartSupplemental.java
new file mode 100644
index 00000000000..2b287892939
--- /dev/null
+++ b/tools/cldr-code/src/main/java/org/unicode/cldr/tool/ChartSupplemental.java
@@ -0,0 +1,96 @@
+package org.unicode.cldr.tool;
+
+import java.io.IOException;
+import java.io.Writer;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Set;
+import java.util.TreeSet;
+import org.unicode.cldr.test.CheckCLDR.CheckStatus;
+import org.unicode.cldr.test.CheckCLDR.SubtypeToURLProvider;
+import org.unicode.cldr.test.TestCache.TestResultBundle;
+import org.unicode.cldr.util.CLDRConfig;
+import org.unicode.cldr.util.CLDRFile;
+import org.unicode.cldr.util.CLDRPaths;
+import org.unicode.cldr.util.Factory;
+
+public class ChartSupplemental extends Chart {
+    private static final CLDRConfig CLDR_CONFIG = CLDRConfig.getInstance();
+    static final CLDRFile ENGLISH = CLDR_CONFIG.getEnglish();
+    static final String DIR = CLDRPaths.CHART_DIRECTORY + "verify/supplemental/";
+
+    private final String locale;
+
+    public ChartSupplemental(String locale) {
+        super();
+        this.locale = locale;
+    }
+
+    @Override
+    public String getDirectory() {
+        return DIR;
+    }
+
+    @Override
+    public String getTitle() {
+        return ENGLISH.getName(locale) + ": Overall Errors";
+    }
+
+    @Override
+    public String getExplanation() {
+        return "<p>This chart shows errors which apply to the entire locale.</p>";
+    }
+
+    @Override
+    public String getFileName() {
+        return locale;
+    }
+
+    @Override
+    public void writeContents(
+            Writer pw, Factory factory, TestResultBundle test, SubtypeToURLProvider urlProvider)
+            throws IOException {
+        CLDRFile cldrFile = factory.make(locale, true);
+
+        if (test != null) {
+            Set<CheckStatus> pp = new TreeSet<CheckStatus>();
+
+            // add any 'early' errors
+            pp.addAll(test.getPossibleProblems());
+
+            // add all non-path status
+            for (final String x : cldrFile) {
+                List<CheckStatus> result = new ArrayList<CheckStatus>();
+                test.check(x, result, cldrFile.getStringValue(x));
+                for (final CheckStatus s : result) {
+                    if (s.getEntireLocale()) pp.add(s);
+                }
+            }
+
+            // report
+
+            if (pp.isEmpty()) {
+                pw.write("<h3>No Errors</h3>\n");
+                pw.write("There are no overall locale issues to report");
+            } else {
+                pw.write("<h3>Overall Errors</h3>\n");
+                pw.write("<ol>\n");
+                for (final CheckStatus s : pp) {
+                    pw.write(
+                            String.format(
+                                    "<li> <b>%s</b> <i title='%s'>%s</i>\n",
+                                    s.getType(), s.getSubtype().name(), s.getSubtype()));
+                    pw.write("<p>" + s.getMessage() + "</p>");
+                    if (urlProvider != null) {
+                        final String moreDetailsUrl = urlProvider.apply(s.getSubtype());
+                        pw.write(String.format("<a href=\"%s\">more details</a>", moreDetailsUrl));
+                    }
+                    pw.write("</li>\n");
+                }
+                pw.write("</ol>\n\n");
+            }
+        }
+
+        pw.write("</div> <!-- ReportSupplemental -->\n");
+    }
+}
diff --git a/tools/cldr-code/src/main/java/org/unicode/cldr/util/VettingViewer.java b/tools/cldr-code/src/main/java/org/unicode/cldr/util/VettingViewer.java
index 6696998312d..0b6b2b3dac0 100644
--- a/tools/cldr-code/src/main/java/org/unicode/cldr/util/VettingViewer.java
+++ b/tools/cldr-code/src/main/java/org/unicode/cldr/util/VettingViewer.java
@@ -197,6 +197,8 @@ public Status getErrorStatus(
             StringBuilder errorMessage = new StringBuilder();
             factory.getTestCache().getBundle(options).check(path, result, value);
             for (CheckStatus checkStatus : result) {
+                if (checkStatus.getEntireLocale())
+                    continue; // these will show up in the Entire Locale (supplemental) report
                 final CheckCLDR cause = checkStatus.getCause();
                 /*
                  * CheckCoverage will be shown under Missing, not under Warnings; and
diff --git a/tools/cldr-code/src/main/java/org/unicode/cldr/util/VoterReportStatus.java b/tools/cldr-code/src/main/java/org/unicode/cldr/util/VoterReportStatus.java
index 73e669af078..2e4bd8d22bb 100644
--- a/tools/cldr-code/src/main/java/org/unicode/cldr/util/VoterReportStatus.java
+++ b/tools/cldr-code/src/main/java/org/unicode/cldr/util/VoterReportStatus.java
@@ -21,6 +21,7 @@ public abstract class VoterReportStatus<T> {
      * 'Person Names' Also see {@link org.unicode.cldr.tool.Chart#forReport(ReportId, String)}
      */
     public enum ReportId {
+        supplemental, // non-Chart (Entire Locale)
         datetime, // non-Chart
         zones, // non-Chart
         compact, // non-Chart, aka 'numbers'