diff --git a/common/bcp47/number.xml b/common/bcp47/number.xml
index 7d242ac07e1..1908f86e1b7 100644
--- a/common/bcp47/number.xml
+++ b/common/bcp47/number.xml
@@ -109,6 +109,7 @@ For terms of use, see http://www.unicode.org/copyright.html
             <type name="vaii" description="Vai digits" since="21"/>
             <type name="wara" description="Warang Citi digits" since="28"/>
             <type name="wcho" description="Wancho digits" since="35"/>
+            <type name="yiii" description="Sichuan Yi digits" since="46"/>
         </key>
     </keyword>
 </ldmlBCP47>
diff --git a/common/main/root.xml b/common/main/root.xml
index 96b647d2567..7f41e99202b 100644
--- a/common/main/root.xml
+++ b/common/main/root.xml
@@ -3295,6 +3295,9 @@ Warnings: All cp values have U+FE0F characters removed. See /annotationsDerived/
 		<symbols numberSystem="wcho">
 			<alias source="locale" path="../symbols[@numberSystem='latn']"/>
 		</symbols>
+		<symbols numberSystem="yiii">
+			<alias source="locale" path="../symbols[@numberSystem='latn']"/>
+		</symbols>
 		<decimalFormats>
 			<alias source="locale" path="../decimalFormats[@numberSystem='latn']"/>
 		</decimalFormats>
diff --git a/common/supplemental/coverageLevels.xml b/common/supplemental/coverageLevels.xml
index 45875bcb494..3ad15edfcfc 100644
--- a/common/supplemental/coverageLevels.xml
+++ b/common/supplemental/coverageLevels.xml
@@ -215,6 +215,7 @@ For terms of use, see http://www.unicode.org/copyright.html
 		<coverageVariable key="%tibtDefaultLanguages" value="(dz)"/>
 		<coverageVariable key="%tibtNativeLanguages" value="(bo)"/>
 		<coverageVariable key="%vaiiNativeLanguages" value="(vai)"/> <!-- regardless of script -->
+		<coverageVariable key="%yiiiNativeLanguages" value="(ii)"/>
 
 		<!-- Additional variables for the restructuring -->
 
@@ -555,7 +556,7 @@ For terms of use, see http://www.unicode.org/copyright.html
 		<coverageLevel	value="moderate"	inLanguage="%tibtDefaultLanguages"	match="numbers/currencyFormats[@numberSystem='tibt']/currencyFormatLength/currencyFormat%stdPattern[@alt='%anyAttribute']"/>
 		<coverageLevel	value="basic"		inLanguage="%tibtDefaultLanguages"	match="numbers/currencyFormats[@numberSystem='tibt']/currencyFormatLength/currencyFormat%stdPattern"/>
 		<coverageLevel	value="moderate"	inLanguage="%tibtDefaultLanguages"	match="numbers/currencyFormats[@numberSystem='tibt']/currencyFormatLength[@type='short']/currencyFormat[@type='standard']/pattern[@type='%compactDecimalTypes']"/>
-	
+
 		<coverageLevel	value="moderate"	inScript="%adlmDefaultScripts"	match="numbers/decimalFormats[@numberSystem='adlm']/decimalFormatLength[@type='%shortLong']/decimalFormat[@type='standard']/pattern[@type='%compactDecimalTypes']"/>
 		<coverageLevel	value="basic"		inScript="%adlmDefaultScripts"	match="numbers/decimalFormats[@numberSystem='adlm']/decimalFormatLength/decimalFormat%stdPattern"/>
 		<coverageLevel	value="moderate"	inLanguage="%arabDefaultLanguages" inScript="Arab" match="numbers/decimalFormats[@numberSystem='arab']/decimalFormatLength[@type='%shortLong']/decimalFormat[@type='standard']/pattern[@type='%compactDecimalTypes']"/>
@@ -885,6 +886,17 @@ For terms of use, see http://www.unicode.org/copyright.html
 		<coverageLevel inLanguage="%vaiiNativeLanguages" value="moderate" match="numbers/scientificFormats[@numberSystem='vaii']/scientificFormatLength/scientificFormat%stdPattern"/>
 		<coverageLevel inLanguage="%vaiiNativeLanguages" value="moderate" match="numbers/percentFormats[@numberSystem='vaii']/percentFormatLength/percentFormat%stdPattern"/>
 		<coverageLevel inLanguage="%vaiiNativeLanguages" value="moderate" match="numbers/decimalFormats[@numberSystem='vaii']/decimalFormatLength[@type='%shortLong']/decimalFormat[@type='standard']/pattern[@type='%compactDecimalTypes']"/>
+		<coverageLevel inLanguage="%yiiiNativeLanguages" value="moderate" match="numbers/symbols[@numberSystem='yiii']/decimal"/>
+		<coverageLevel inLanguage="%yiiiNativeLanguages" value="moderate" match="numbers/symbols[@numberSystem='yiii']/group"/>
+		<coverageLevel inLanguage="%yiiiNativeLanguages" value="moderate" match="numbers/symbols[@numberSystem='yiii']/plusSign"/>
+		<coverageLevel inLanguage="%yiiiNativeLanguages" value="moderate" match="numbers/symbols[@numberSystem='yiii']/minusSign"/>
+		<coverageLevel inLanguage="%yiiiNativeLanguages" value="moderate" match="numbers/symbols[@numberSystem='yiii']/percentSign"/>
+		<coverageLevel inLanguage="%yiiiNativeLanguages" value="moderate" match="numbers/decimalFormats[@numberSystem='yiii']/decimalFormatLength/decimalFormat%stdPattern"/>
+		<coverageLevel inLanguage="%yiiiNativeLanguages" value="moderate" match="numbers/currencyFormats[@numberSystem='yiii']/currencyFormatLength/currencyFormat%stdPattern"/>
+		<coverageLevel inLanguage="%yiiiNativeLanguages" value="moderate" match="numbers/currencyFormats[@numberSystem='yiii']/currencyFormatLength/currencyFormat%stdPattern[@alt='%anyAttribute']"/>
+		<coverageLevel inLanguage="%yiiiNativeLanguages" value="moderate" match="numbers/scientificFormats[@numberSystem='yiii']/scientificFormatLength/scientificFormat%stdPattern"/>
+		<coverageLevel inLanguage="%yiiiNativeLanguages" value="moderate" match="numbers/percentFormats[@numberSystem='yiii']/percentFormatLength/percentFormat%stdPattern"/>
+		<coverageLevel inLanguage="%yiiiNativeLanguages" value="moderate" match="numbers/decimalFormats[@numberSystem='yiii']/decimalFormatLength[@type='%shortLong']/decimalFormat[@type='standard']/pattern[@type='%compactDecimalTypes']"/>
 
 		<coverageLevel value="moderate" match="dates/calendars/calendar[@type='gregorian']/dateTimeFormats/appendItems/appendItem[@request='Timezone']"/>
 		<coverageLevel value="moderate" match="dates/calendars/calendar[@type='generic']/dateTimeFormats/availableFormats/dateFormatItem[@id='%dateFormatItems']"/>
diff --git a/common/supplemental/numberingSystems.xml b/common/supplemental/numberingSystems.xml
index 13b3ad5b7eb..53042565575 100644
--- a/common/supplemental/numberingSystems.xml
+++ b/common/supplemental/numberingSystems.xml
@@ -104,5 +104,6 @@ For terms of use, see http://www.unicode.org/copyright.html
         <numberingSystem id="vaii" type="numeric" digits="꘠꘡꘢꘣꘤꘥꘦꘧꘨꘩"/>
         <numberingSystem id="wara" type="numeric" digits="&#x118E0;&#x118E1;&#x118E2;&#x118E3;&#x118E4;&#x118E5;&#x118E6;&#x118E7;&#x118E8;&#x118E9;"/>
         <numberingSystem id="wcho" type="numeric" digits="&#x1E2F0;&#x1E2F1;&#x1E2F2;&#x1E2F3;&#x1E2F4;&#x1E2F5;&#x1E2F6;&#x1E2F7;&#x1E2F8;&#x1E2F9;"/>
+        <numberingSystem id="yiii" type="numeric" digits="ꊰꋍꑍꌕꇖꉬꃘꏃꉆꈬ"/> <!-- 0…9-->
     </numberingSystems>
 </supplementalData>
diff --git a/tools/cldr-code/src/main/java/org/unicode/cldr/util/XMLSource.java b/tools/cldr-code/src/main/java/org/unicode/cldr/util/XMLSource.java
index 780cbfc7317..e24f4085995 100644
--- a/tools/cldr-code/src/main/java/org/unicode/cldr/util/XMLSource.java
+++ b/tools/cldr-code/src/main/java/org/unicode/cldr/util/XMLSource.java
@@ -1591,6 +1591,7 @@ public String getLocaleID() {
             {"vaii", "numbers"},
             {"wara", "numbers"},
             {"wcho", "numbers"},
+            {"yiii", "numbers"},
             {"zhuyin", "collation"}
         };
 
diff --git a/tools/cldr-code/src/test/java/org/unicode/cldr/unittest/TestCoverageLevel.java b/tools/cldr-code/src/test/java/org/unicode/cldr/unittest/TestCoverageLevel.java
index 0cbe132b066..29aee1afbe4 100644
--- a/tools/cldr-code/src/test/java/org/unicode/cldr/unittest/TestCoverageLevel.java
+++ b/tools/cldr-code/src/test/java/org/unicode/cldr/unittest/TestCoverageLevel.java
@@ -525,7 +525,7 @@ public void TestCoverageCompleteness() {
                                 + "gara|gong|gonm|gukh|hanidays|hmng|hmnp|java|jpanyear|kali|kawi|krai|lana(tham)?|lepc|limb|"
                                 + "math(bold|dbl|mono|san[bs])|modi|mong|mroo|mtei|mymr(epka|pao|shan|tlng)|"
                                 + "nagm|newa|nkoo|olck|onao|osma|outlined|rohg|saur|segment|shrd|sin[dh]|sora|sund|sunu|"
-                                + "takr|talu|tirh|tnsa|vaii|wara|wcho)");
+                                + "takr|talu|tirh|tnsa|vaii|wara|wcho|yiii)");
 
         final Pattern collation100 =
                 PatternCache.get(