diff --git a/modules/angular2/src/change_detection/change_detection.ts b/modules/angular2/src/change_detection/change_detection.ts
index 5e554702e0cf4..8d61656755d60 100644
--- a/modules/angular2/src/change_detection/change_detection.ts
+++ b/modules/angular2/src/change_detection/change_detection.ts
@@ -14,59 +14,67 @@ import {NullPipeFactory} from './pipes/null_pipe';
 import {ChangeDetection, ProtoChangeDetector, ChangeDetectorDefinition} from './interfaces';
 import {Inject, Injectable, OpaqueToken, Optional} from 'angular2/di';
 import {List, StringMap, StringMapWrapper} from 'angular2/src/facade/collection';
-import {CONST_EXPR, isPresent, BaseException} from 'angular2/src/facade/lang';
+import {CONST, CONST_EXPR, isPresent, BaseException} from 'angular2/src/facade/lang';
 
 /**
  * Structural diffing for `Object`s and `Map`s.
  *
  * @exportedAs angular2/pipes
  */
-export var keyValDiff: List<PipeFactory> = [new KeyValueChangesFactory(), new NullPipeFactory()];
+export const keyValDiff: List<PipeFactory> =
+    CONST_EXPR([CONST_EXPR(new KeyValueChangesFactory()), CONST_EXPR(new NullPipeFactory())]);
 
 /**
  * Structural diffing for `Iterable` types such as `Array`s.
  *
  * @exportedAs angular2/pipes
  */
-export var iterableDiff: List<PipeFactory> = [new IterableChangesFactory(), new NullPipeFactory()];
+export const iterableDiff: List<PipeFactory> =
+    CONST_EXPR([CONST_EXPR(new IterableChangesFactory()), CONST_EXPR(new NullPipeFactory())]);
 
 /**
  * Async binding to such types as Observable.
  *
  * @exportedAs angular2/pipes
  */
-export var async: List<PipeFactory> =
-    [new ObservablePipeFactory(), new PromisePipeFactory(), new NullPipeFactory()];
+export const async: List<PipeFactory> = CONST_EXPR([
+  CONST_EXPR(new ObservablePipeFactory()),
+  CONST_EXPR(new PromisePipeFactory()),
+  CONST_EXPR(new NullPipeFactory())
+]);
 
 /**
  * Uppercase text transform.
  *
  * @exportedAs angular2/pipes
  */
-export var uppercase: List<PipeFactory> = [new UpperCaseFactory(), new NullPipeFactory()];
+export const uppercase: List<PipeFactory> =
+    CONST_EXPR([CONST_EXPR(new UpperCaseFactory()), CONST_EXPR(new NullPipeFactory())]);
 
 /**
  * Lowercase text transform.
  *
  * @exportedAs angular2/pipes
  */
-export var lowercase: List<PipeFactory> = [new LowerCaseFactory(), new NullPipeFactory()];
+export const lowercase: List<PipeFactory> =
+    CONST_EXPR([CONST_EXPR(new LowerCaseFactory()), CONST_EXPR(new NullPipeFactory())]);
 
 /**
  * Json stringify transform.
  *
  * @exportedAs angular2/pipes
  */
-export var json: List<PipeFactory | Pipe> = [new JsonPipe(), new NullPipeFactory()];
+export const json: List<PipeFactory | Pipe> =
+    CONST_EXPR([CONST_EXPR(new JsonPipe()), CONST_EXPR(new NullPipeFactory())]);
 
-export var defaultPipes = {
+export const defaultPipes = CONST_EXPR({
   "iterableDiff": iterableDiff,
   "keyValDiff": keyValDiff,
   "async": async,
   "uppercase": uppercase,
   "lowercase": lowercase,
   "json": json
-};
+});
 
 /**
  * Map from {@link ChangeDetectorDefinition#id} to a factory method which takes a
@@ -137,6 +145,7 @@ export class DynamicChangeDetection extends ChangeDetection {
  * @exportedAs angular2/change_detection
  */
 @Injectable()
+@CONST()
 export class JitChangeDetection extends ChangeDetection {
   constructor(public registry: PipeRegistry) { super(); }
 
@@ -147,4 +156,4 @@ export class JitChangeDetection extends ChangeDetection {
   }
 }
 
-export var defaultPipeRegistry: PipeRegistry = new PipeRegistry(defaultPipes);
+export const defaultPipeRegistry: PipeRegistry = CONST_EXPR(new PipeRegistry(defaultPipes));
diff --git a/modules/angular2/src/change_detection/interfaces.ts b/modules/angular2/src/change_detection/interfaces.ts
index 99e08d7fb2f4a..d25a4880d519d 100644
--- a/modules/angular2/src/change_detection/interfaces.ts
+++ b/modules/angular2/src/change_detection/interfaces.ts
@@ -1,4 +1,5 @@
 import {List} from 'angular2/src/facade/collection';
+import {CONST} from 'angular2/src/facade/lang';
 import {Locals} from './parser/locals';
 import {BindingRecord} from './binding_record';
 import {DirectiveRecord} from './directive_record';
@@ -29,6 +30,7 @@ import {DirectiveRecord} from './directive_record';
  * ```
  * @exportedAs angular2/change_detection
  */
+@CONST()
 export class ChangeDetection {
   createProtoChangeDetector(definition: ChangeDetectorDefinition): ProtoChangeDetector {
     return null;
diff --git a/modules/angular2/src/change_detection/pipes/json_pipe.ts b/modules/angular2/src/change_detection/pipes/json_pipe.ts
index 8d379b9246d98..e15c1b1237305 100644
--- a/modules/angular2/src/change_detection/pipes/json_pipe.ts
+++ b/modules/angular2/src/change_detection/pipes/json_pipe.ts
@@ -1,4 +1,4 @@
-import {isBlank, isPresent, Json} from 'angular2/src/facade/lang';
+import {isBlank, isPresent, Json, CONST} from 'angular2/src/facade/lang';
 import {Pipe, BasePipe, PipeFactory} from './pipe';
 
 /**
@@ -26,6 +26,7 @@ import {Pipe, BasePipe, PipeFactory} from './pipe';
  *
  * @exportedAs angular2/pipes
  */
+@CONST()
 export class JsonPipe extends BasePipe {
   transform(value): string { return Json.stringify(value); }
 
diff --git a/modules/angular2/src/change_detection/pipes/lowercase_pipe.ts b/modules/angular2/src/change_detection/pipes/lowercase_pipe.ts
index 28a0fb72e066f..6d41e5c2208a0 100644
--- a/modules/angular2/src/change_detection/pipes/lowercase_pipe.ts
+++ b/modules/angular2/src/change_detection/pipes/lowercase_pipe.ts
@@ -1,4 +1,4 @@
-import {isString, StringWrapper} from 'angular2/src/facade/lang';
+import {isString, StringWrapper, CONST} from 'angular2/src/facade/lang';
 import {Pipe} from './pipe';
 
 /**
@@ -43,6 +43,7 @@ export class LowerCasePipe implements Pipe {
 /**
  * @exportedAs angular2/pipes
  */
+@CONST()
 export class LowerCaseFactory {
   supports(str): boolean { return isString(str); }
 
diff --git a/modules/angular2/src/change_detection/pipes/pipe.ts b/modules/angular2/src/change_detection/pipes/pipe.ts
index dd575c1c424b2..883665df99ca6 100644
--- a/modules/angular2/src/change_detection/pipes/pipe.ts
+++ b/modules/angular2/src/change_detection/pipes/pipe.ts
@@ -70,6 +70,7 @@ export interface Pipe {
  * }
  * ```
  */
+@CONST()
 export class BasePipe implements Pipe {
   supports(obj): boolean { return true; }
   onDestroy(): void {}
diff --git a/modules/angular2/src/change_detection/pipes/pipe_registry.ts b/modules/angular2/src/change_detection/pipes/pipe_registry.ts
index c278c0f8512a3..ae9eeca173e6d 100644
--- a/modules/angular2/src/change_detection/pipes/pipe_registry.ts
+++ b/modules/angular2/src/change_detection/pipes/pipe_registry.ts
@@ -5,6 +5,7 @@ import {Injectable} from 'angular2/src/di/decorators';
 import {ChangeDetectorRef} from '../change_detector_ref';
 
 @Injectable()
+@CONST()
 export class PipeRegistry {
   constructor(public config) {}
 
diff --git a/modules/angular2/src/change_detection/pipes/promise_pipe.ts b/modules/angular2/src/change_detection/pipes/promise_pipe.ts
index 00ffaf10a5d4b..3821484495a9a 100644
--- a/modules/angular2/src/change_detection/pipes/promise_pipe.ts
+++ b/modules/angular2/src/change_detection/pipes/promise_pipe.ts
@@ -1,5 +1,5 @@
 import {Promise, PromiseWrapper} from 'angular2/src/facade/async';
-import {isBlank, isPresent, isPromise} from 'angular2/src/facade/lang';
+import {isBlank, isPresent, isPromise, CONST} from 'angular2/src/facade/lang';
 import {Pipe, WrappedValue} from './pipe';
 import {ChangeDetectorRef} from '../change_detector_ref';
 
@@ -80,6 +80,7 @@ export class PromisePipe implements Pipe {
  *
  * @exportedAs angular2/pipes
  */
+@CONST()
 export class PromisePipeFactory {
   supports(promise): boolean { return isPromise(promise); }
 
diff --git a/modules/angular2/src/change_detection/pipes/uppercase_pipe.ts b/modules/angular2/src/change_detection/pipes/uppercase_pipe.ts
index 8c9da28d7045f..78a9729184e7c 100644
--- a/modules/angular2/src/change_detection/pipes/uppercase_pipe.ts
+++ b/modules/angular2/src/change_detection/pipes/uppercase_pipe.ts
@@ -1,4 +1,4 @@
-import {isString, StringWrapper} from 'angular2/src/facade/lang';
+import {isString, StringWrapper, CONST} from 'angular2/src/facade/lang';
 import {Pipe} from './pipe';
 
 /**
@@ -43,6 +43,7 @@ export class UpperCasePipe implements Pipe {
 /**
  * @exportedAs angular2/pipes
  */
+@CONST()
 export class UpperCaseFactory {
   supports(str): boolean { return isString(str); }
 
diff --git a/modules/angular2/src/core/application_tokens.ts b/modules/angular2/src/core/application_tokens.ts
index d86cebaa5607c..441c5407bc8e1 100644
--- a/modules/angular2/src/core/application_tokens.ts
+++ b/modules/angular2/src/core/application_tokens.ts
@@ -1,4 +1,5 @@
 import {OpaqueToken} from 'angular2/di';
+import {CONST_EXPR} from 'angular2/src/facade/lang';
 
-export var appComponentRefToken: OpaqueToken = new OpaqueToken('ComponentRef');
-export var appComponentTypeToken: OpaqueToken = new OpaqueToken('RootComponent');
+export const appComponentRefToken: OpaqueToken = CONST_EXPR(new OpaqueToken('ComponentRef'));
+export const appComponentTypeToken: OpaqueToken = CONST_EXPR(new OpaqueToken('RootComponent'));