diff --git a/fuzzers/tint_ast_clone_fuzzer.cc b/fuzzers/tint_ast_clone_fuzzer.cc
index 6c339e9..7b5f951 100644
--- a/fuzzers/tint_ast_clone_fuzzer.cc
+++ b/fuzzers/tint_ast_clone_fuzzer.cc
@@ -64,18 +64,18 @@
 
   // Check that none of the AST nodes or type pointers in dst are found in src
   std::unordered_set<tint::ast::Node*> src_nodes;
-  for (auto* src_node : src.nodes()) {
+  for (auto* src_node : src.Nodes().Objects()) {
     src_nodes.emplace(src_node);
   }
   std::unordered_set<tint::type::Type*> src_types;
-  for (auto& src_type : src.types()) {
-    src_types.emplace(src_type.second);
+  for (auto* src_type : src.Types()) {
+    src_types.emplace(src_type);
   }
-  for (auto* dst_node : dst.nodes()) {
+  for (auto* dst_node : dst.Nodes().Objects()) {
     ASSERT_EQ(src_nodes.count(dst_node), 0u);
   }
-  for (auto& dst_type : dst.types()) {
-    ASSERT_EQ(src_types.count(dst_type.second), 0u);
+  for (auto* dst_type : dst.Types()) {
+    ASSERT_EQ(src_types.count(dst_type), 0u);
   }
 
   // Regenerate the wgsl for the src program. We use this instead of the
diff --git a/src/ast/module_clone_test.cc b/src/ast/module_clone_test.cc
index b32c577..f76bf0d 100644
--- a/src/ast/module_clone_test.cc
+++ b/src/ast/module_clone_test.cc
@@ -123,19 +123,18 @@
 
   // Check that none of the AST nodes or type pointers in dst are found in src
   std::unordered_set<ast::Node*> src_nodes;
-  for (auto* src_node : src.nodes()) {
+  for (auto* src_node : src.Nodes().Objects()) {
     src_nodes.emplace(src_node);
   }
   std::unordered_set<type::Type*> src_types;
-  for (auto& src_type : src.types()) {
-    src_types.emplace(src_type.second);
+  for (auto* src_type : src.Types()) {
+    src_types.emplace(src_type);
   }
-  for (auto* dst_node : dst.nodes()) {
+  for (auto* dst_node : dst.Nodes().Objects()) {
     ASSERT_EQ(src_nodes.count(dst_node), 0u) << dst_node->str();
   }
-  for (auto& dst_type : dst.types()) {
-    ASSERT_EQ(src_types.count(dst_type.second), 0u)
-        << dst_type.second->type_name();
+  for (auto* dst_type : dst.Types()) {
+    ASSERT_EQ(src_types.count(dst_type), 0u) << dst_type->type_name();
   }
 
   // Regenerate the wgsl for the src program. We use this instead of the
diff --git a/src/program.h b/src/program.h
index aa0e63c..0fe0bb6 100644
--- a/src/program.h
+++ b/src/program.h
@@ -118,19 +118,6 @@
     return types_.Get<T>(std::forward<ARGS>(args)...);
   }
 
-  /// Returns all the declared types in the program
-  /// [DEPRECATED]: Use AST().Types().types()
-  /// @returns the mapping from name string to type.
-  const std::unordered_map<std::string, type::Type*>& types() {
-    return types_.types();
-  }
-
-  /// @returns all the declared nodes in the program
-  /// [DEPRECATED]: Use Nodes().Objects()
-  BlockAllocator<ast::Node>::ConstView nodes() const {
-    return Nodes().Objects();
-  }
-
   /// Registers `name` as a symbol
   /// @param name the name to register
   /// @returns the symbol for the `name`. If `name` is already registered the
diff --git a/src/type/type_manager.h b/src/type/type_manager.h
index 302a3c7..b157328 100644
--- a/src/type/type_manager.h
+++ b/src/type/type_manager.h
@@ -65,7 +65,7 @@
 
   /// Returns the type map
   /// @returns the mapping from name string to type.
-  const std::unordered_map<std::string, type::Type*>& types() {
+  const std::unordered_map<std::string, type::Type*>& types() const {
     return by_name_;
   }
 
diff --git a/src/type_determiner.cc b/src/type_determiner.cc
index 22ca44b..edbed10 100644
--- a/src/type_determiner.cc
+++ b/src/type_determiner.cc
@@ -101,9 +101,8 @@
 
 bool TypeDeterminer::Determine() {
   std::vector<type::StorageTexture*> storage_textures;
-  for (auto& it : program_->types()) {
-    if (auto* storage =
-            it.second->UnwrapIfNeeded()->As<type::StorageTexture>()) {
+  for (auto* ty : program_->Types()) {
+    if (auto* storage = ty->UnwrapIfNeeded()->As<type::StorageTexture>()) {
       storage_textures.emplace_back(storage);
     }
   }