diff --git a/src/main/java/com/google/devtools/build/lib/bazel/BUILD b/src/main/java/com/google/devtools/build/lib/bazel/BUILD
index 88a90f3fd78b80..c10ae9dfecebf8 100644
--- a/src/main/java/com/google/devtools/build/lib/bazel/BUILD
+++ b/src/main/java/com/google/devtools/build/lib/bazel/BUILD
@@ -26,6 +26,8 @@ java_library(
         "//src/main/java/com/google/devtools/build/lib/analysis:analysis_cluster",
         "//src/main/java/com/google/devtools/build/lib/analysis:blaze_directories",
         "//src/main/java/com/google/devtools/build/lib/analysis:config/build_configuration",
+        "//src/main/java/com/google/devtools/build/lib/bazel/bzlmod:registry",
+        "//src/main/java/com/google/devtools/build/lib/bazel/bzlmod:resolution",
         "//src/main/java/com/google/devtools/build/lib/bazel/commands",
         "//src/main/java/com/google/devtools/build/lib/bazel/repository",
         "//src/main/java/com/google/devtools/build/lib/bazel/repository/cache",
diff --git a/src/main/java/com/google/devtools/build/lib/bazel/BazelRepositoryModule.java b/src/main/java/com/google/devtools/build/lib/bazel/BazelRepositoryModule.java
index 2c061ec68978ea..2cdee580c48a54 100644
--- a/src/main/java/com/google/devtools/build/lib/bazel/BazelRepositoryModule.java
+++ b/src/main/java/com/google/devtools/build/lib/bazel/BazelRepositoryModule.java
@@ -25,6 +25,11 @@
 import com.google.devtools.build.lib.analysis.ConfiguredRuleClassProvider;
 import com.google.devtools.build.lib.analysis.RuleDefinition;
 import com.google.devtools.build.lib.analysis.config.BuildConfiguration;
+import com.google.devtools.build.lib.bazel.bzlmod.DiscoveryFunction;
+import com.google.devtools.build.lib.bazel.bzlmod.ModuleFileFunction;
+import com.google.devtools.build.lib.bazel.bzlmod.RegistryFactory;
+import com.google.devtools.build.lib.bazel.bzlmod.RegistryFactoryImpl;
+import com.google.devtools.build.lib.bazel.bzlmod.SelectionFunction;
 import com.google.devtools.build.lib.bazel.commands.FetchCommand;
 import com.google.devtools.build.lib.bazel.commands.SyncCommand;
 import com.google.devtools.build.lib.bazel.repository.LocalConfigPlatformFunction;
@@ -87,6 +92,7 @@
 import java.io.IOException;
 import java.lang.reflect.InvocationTargetException;
 import java.util.LinkedHashMap;
+import java.util.List;
 import java.util.Map;
 import java.util.Optional;
 import java.util.Set;
@@ -98,6 +104,10 @@ public class BazelRepositoryModule extends BlazeModule {
   // Default location (relative to output user root) of the repository cache.
   public static final String DEFAULT_CACHE_LOCATION = "cache/repos/v1";
 
+  // Default list of registries.
+  public static final ImmutableList<String> DEFAULT_REGISTRIES =
+      ImmutableList.of("https://bcr.bazel.build/");
+
   // A map of repository handlers that can be looked up by rule class name.
   private final ImmutableMap<String, RepositoryFunction> repositoryHandlers;
   private final AtomicBoolean isFetch = new AtomicBoolean(false);
@@ -115,6 +125,7 @@ public class BazelRepositoryModule extends BlazeModule {
   private Optional<RootedPath> resolvedFileReplacingWorkspace = Optional.empty();
   private Set<String> outputVerificationRules = ImmutableSet.of();
   private FileSystem filesystem;
+  private List<String> registries;
   // We hold the precomputed value of the managed directories here, so that the dependency
   // on WorkspaceFileValue is not registered for each FileStateValue.
   private final ManagedDirectoriesKnowledgeImpl managedDirectoriesKnowledge;
@@ -202,6 +213,13 @@ public void workspaceInit(
             managedDirectoriesKnowledge,
             BazelSkyframeExecutorConstants.EXTERNAL_PACKAGE_HELPER);
     builder.addSkyFunction(SkyFunctions.REPOSITORY_DIRECTORY, repositoryDelegatorFunction);
+    RegistryFactory registryFactory =
+        new RegistryFactoryImpl(new HttpDownloader(), clientEnvironmentSupplier);
+    builder.addSkyFunction(
+        SkyFunctions.MODULE_FILE,
+        new ModuleFileFunction(registryFactory, directories.getWorkspace()));
+    builder.addSkyFunction(SkyFunctions.DISCOVERY, new DiscoveryFunction());
+    builder.addSkyFunction(SkyFunctions.SELECTION, new SelectionFunction());
     filesystem = runtime.getFileSystem();
   }
 
@@ -335,6 +353,12 @@ public void beforeCommand(CommandEnvironment env) throws AbruptExitException {
         overrides = ImmutableMap.of();
       }
 
+      if (repoOptions.registries != null && !repoOptions.registries.isEmpty()) {
+        registries = repoOptions.registries;
+      } else {
+        registries = DEFAULT_REGISTRIES;
+      }
+
       if (!Strings.isNullOrEmpty(repoOptions.repositoryHashFile)) {
         Path hashFile;
         if (env.getWorkspace() != null) {
@@ -394,7 +418,8 @@ public ImmutableList<Injected> getPrecomputedValues() {
             RepositoryDelegatorFunction.DONT_FETCH_UNCONDITIONALLY),
         PrecomputedValue.injected(
             RepositoryDelegatorFunction.DEPENDENCY_FOR_UNCONDITIONAL_CONFIGURING,
-            RepositoryDelegatorFunction.DONT_FETCH_UNCONDITIONALLY));
+            RepositoryDelegatorFunction.DONT_FETCH_UNCONDITIONALLY),
+        PrecomputedValue.injected(ModuleFileFunction.REGISTRIES, registries));
   }
 
   @Override
diff --git a/src/main/java/com/google/devtools/build/lib/bazel/repository/BUILD b/src/main/java/com/google/devtools/build/lib/bazel/repository/BUILD
index 46ee3857f39adc..ae09b9a503e20d 100644
--- a/src/main/java/com/google/devtools/build/lib/bazel/repository/BUILD
+++ b/src/main/java/com/google/devtools/build/lib/bazel/repository/BUILD
@@ -44,7 +44,6 @@ java_library(
         "//src/main/java/com/google/devtools/build/skyframe:skyframe-objects",
         "//src/main/java/com/google/devtools/common/options",
         "//src/main/java/net/starlark/java/eval",
-        "//src/main/java/net/starlark/java/syntax",
         "//third_party:apache_commons_compress",
         "//third_party:auto_value",
         "//third_party:flogger",
diff --git a/src/main/java/com/google/devtools/build/lib/bazel/repository/RepositoryOptions.java b/src/main/java/com/google/devtools/build/lib/bazel/repository/RepositoryOptions.java
index ba79637c74da88..8558e285cf3d7e 100644
--- a/src/main/java/com/google/devtools/build/lib/bazel/repository/RepositoryOptions.java
+++ b/src/main/java/com/google/devtools/build/lib/bazel/repository/RepositoryOptions.java
@@ -46,6 +46,18 @@ public class RepositoryOptions extends OptionsBase {
               + "as argument requests the cache to be disabled.")
   public PathFragment experimentalRepositoryCache;
 
+  @Option(
+      name = "registry",
+      defaultValue = "null",
+      allowMultiple = true,
+      documentationCategory = OptionDocumentationCategory.BAZEL_CLIENT_OPTIONS,
+      effectTags = {OptionEffectTag.CHANGES_INPUTS},
+      help =
+          "Specifies the registries to use to locate Bazel module dependencies. The order is"
+              + " important: modules will be looked up in earlier registries first, and only fall"
+              + " back to later registries when they're missing from the earlier ones.")
+  public List<String> registries;
+
   @Option(
       name = "experimental_repository_cache_hardlinks",
       defaultValue = "false",