diff --git a/cc/library.go b/cc/library.go
index 5b24809..44bbdfc 100644
--- a/cc/library.go
+++ b/cc/library.go
@@ -1261,6 +1261,18 @@
 		"34")
 }
 
+func (library *libraryDecorator) linkApexSAbiDumpFiles(ctx ModuleContext,
+	deps PathDeps, sAbiDumpFiles android.Paths, soFile android.Path, libFileName string,
+	excludeSymbolVersions, excludeSymbolTags []string, sdkVersion string) android.Path {
+	return transformDumpToLinkedDump(ctx,
+		sAbiDumpFiles, soFile, libFileName+".apex",
+		library.exportedIncludeDirsForAbiCheck(ctx),
+		android.OptionalPathForModuleSrc(ctx, library.Properties.Stubs.Symbol_file),
+		append([]string{"*_PLATFORM", "*_PRIVATE"}, excludeSymbolVersions...),
+		append([]string{"platform-only"}, excludeSymbolTags...),
+		sdkVersion)
+}
+
 func getRefAbiDumpFile(ctx android.ModuleInstallPathContext,
 	versionedDumpDir, fileName string) android.OptionalPath {
 
@@ -1276,21 +1288,21 @@
 }
 
 // Return the previous and current SDK versions for cross-version ABI diff.
-func crossVersionAbiDiffSdkVersions(ctx ModuleContext, dumpDir string) (string, string) {
+func crossVersionAbiDiffSdkVersions(ctx ModuleContext, dumpDir string) (int, int) {
 	sdkVersionInt := ctx.Config().PlatformSdkVersion().FinalInt()
-	sdkVersionStr := ctx.Config().PlatformSdkVersion().String()
 
 	if ctx.Config().PlatformSdkFinal() {
-		return strconv.Itoa(sdkVersionInt - 1), sdkVersionStr
+		return sdkVersionInt - 1, sdkVersionInt
 	} else {
 		// The platform SDK version can be upgraded before finalization while the corresponding abi dumps hasn't
 		// been generated. Thus the Cross-Version Check chooses PLATFORM_SDK_VERION - 1 as previous version.
 		// This situation could be identified by checking the existence of the PLATFORM_SDK_VERION dump directory.
-		versionedDumpDir := android.ExistentPathForSource(ctx, dumpDir, sdkVersionStr)
+		versionedDumpDir := android.ExistentPathForSource(ctx,
+			dumpDir, ctx.Config().PlatformSdkVersion().String())
 		if versionedDumpDir.Valid() {
-			return sdkVersionStr, strconv.Itoa(sdkVersionInt + 1)
+			return sdkVersionInt, sdkVersionInt + 1
 		} else {
-			return strconv.Itoa(sdkVersionInt - 1), sdkVersionStr
+			return sdkVersionInt - 1, sdkVersionInt
 		}
 	}
 }
@@ -1387,7 +1399,7 @@
 			headerAbiChecker.Exclude_symbol_tags,
 			currSdkVersion)
 
-		var llndkDump android.Path
+		var llndkDump, apexVariantDump android.Path
 		tags := classifySourceAbiDump(ctx)
 		for _, tag := range tags {
 			if tag == llndkLsdumpTag {
@@ -1399,6 +1411,15 @@
 						headerAbiChecker.Exclude_symbol_tags)
 				}
 				addLsdumpPath(string(tag) + ":" + llndkDump.String())
+			} else if tag == apexLsdumpTag {
+				if apexVariantDump == nil {
+					apexVariantDump = library.linkApexSAbiDumpFiles(ctx,
+						deps, objs.sAbiDumpFiles, soFile, fileName,
+						headerAbiChecker.Exclude_symbol_versions,
+						headerAbiChecker.Exclude_symbol_tags,
+						currSdkVersion)
+				}
+				addLsdumpPath(string(tag) + ":" + apexVariantDump.String())
 			} else {
 				addLsdumpPath(string(tag) + ":" + implDump.String())
 			}
@@ -1412,11 +1433,14 @@
 			}
 			dumpDir := filepath.Join("prebuilts", "abi-dumps", dumpDirName)
 			isLlndk := (tag == llndkLsdumpTag)
+			isApex := (tag == apexLsdumpTag)
 			isNdk := (tag == ndkLsdumpTag)
 			binderBitness := ctx.DeviceConfig().BinderBitness()
 			nameExt := ""
 			if isLlndk {
 				nameExt = "llndk"
+			} else if isApex {
+				nameExt = "apex"
 			}
 			// Check against the previous version.
 			var prevVersion, currVersion string
@@ -1430,7 +1454,13 @@
 					sourceDump = llndkDump
 				}
 			} else {
-				prevVersion, currVersion = crossVersionAbiDiffSdkVersions(ctx, dumpDir)
+				prevVersionInt, currVersionInt := crossVersionAbiDiffSdkVersions(ctx, dumpDir)
+				prevVersion = strconv.Itoa(prevVersionInt)
+				currVersion = strconv.Itoa(currVersionInt)
+				// APEX dumps are generated by different rules after trunk stable.
+				if isApex && prevVersionInt > 34 {
+					sourceDump = apexVariantDump
+				}
 			}
 			prevDumpDir := filepath.Join(dumpDir, prevVersion, binderBitness)
 			prevDumpFile := getRefAbiDumpFile(ctx, prevDumpDir, fileName)
@@ -1447,6 +1477,10 @@
 				}
 			} else {
 				currVersion = currSdkVersion
+				if isApex && (!ctx.Config().PlatformSdkFinal() ||
+					ctx.Config().PlatformSdkVersion().FinalInt() > 34) {
+					sourceDump = apexVariantDump
+				}
 			}
 			currDumpDir := filepath.Join(dumpDir, currVersion, binderBitness)
 			currDumpFile := getRefAbiDumpFile(ctx, currDumpDir, fileName)
diff --git a/cc/sabi.go b/cc/sabi.go
index ef43c8d..cd9bf63 100644
--- a/cc/sabi.go
+++ b/cc/sabi.go
@@ -29,6 +29,7 @@
 type lsdumpTag string
 
 const (
+	apexLsdumpTag     lsdumpTag = "APEX"
 	llndkLsdumpTag    lsdumpTag = "LLNDK"
 	ndkLsdumpTag      lsdumpTag = "NDK"
 	platformLsdumpTag lsdumpTag = "PLATFORM"
@@ -39,6 +40,8 @@
 // Return the prebuilt ABI dump directory for a tag; an empty string for an opt-in dump.
 func (tag *lsdumpTag) dirName() string {
 	switch *tag {
+	case apexLsdumpTag:
+		return "platform"
 	case ndkLsdumpTag:
 		return "ndk"
 	case llndkLsdumpTag:
@@ -134,11 +137,13 @@
 		if m.isImplementationForLLNDKPublic() {
 			result = append(result, llndkLsdumpTag)
 		}
-		// Return NDK if the library is both NDK and APEX.
-		// TODO(b/309880485): Split NDK and APEX ABI.
 		if m.IsNdk(ctx.Config()) {
 			result = append(result, ndkLsdumpTag)
-		} else if m.library.hasStubsVariants() || headerAbiChecker.enabled() {
+		}
+		// APEX and opt-in platform dumps are placed in the same directory.
+		if m.library.hasStubsVariants() {
+			result = append(result, apexLsdumpTag)
+		} else if headerAbiChecker.enabled() {
 			result = append(result, platformLsdumpTag)
 		}
 	} else if headerAbiChecker.enabled() {