diff --git a/material-design-lite/material-design-lite-tests.ts b/material-design-lite/material-design-lite-tests.ts
new file mode 100644
index 0000000000..afbf5faf15
--- /dev/null
+++ b/material-design-lite/material-design-lite-tests.ts
@@ -0,0 +1,38 @@
+// Test file for Google Maps JavaScript API Definition file
+/// <reference path="material-design-lite.d.ts" />
+
+componentHandler.upgradeDom();
+componentHandler.upgradeDom('MaterialButton');
+componentHandler.upgradeDom('MaterialButton', 'mdl-button');
+
+componentHandler.upgradeElement(document.createElement('div'));
+componentHandler.upgradeElement(document.getElementById('id'));
+componentHandler.upgradeElement(document.getElementsByTagName('button')[0], 'MaterialButton');
+
+componentHandler.upgradeElements(document.getElementsByTagName('div'));
+componentHandler.upgradeElements([document.createElement('div')]);
+componentHandler.upgradeElements(document.querySelectorAll('div.mdl-button'));
+
+componentHandler.upgradeAllRegistered();
+
+componentHandler.registerUpgradedCallback('MaterialButton', function(element : HTMLElement) {});
+
+componentHandler.register({
+    constructor: function(element: HTMLElement) {},
+    classAsString: 'MaterialCheese',
+    cssClass: 'mdl-cheese'
+});
+componentHandler.register({
+    constructor: function(element: HTMLElement) {},
+    classAsString: 'MaterialFoo',
+    cssClass: 'mdl-foo',
+    widget: true
+});
+componentHandler.register({
+    constructor: function(element: HTMLElement) {},
+    classAsString: 'MaterialFoo',
+    cssClass: 'mdl-foo',
+    widget: 'FooBar'
+});
+
+componentHandler.downgradeElements(document.querySelectorAll('div'));
diff --git a/material-design-lite/material-design-lite.d.ts b/material-design-lite/material-design-lite.d.ts
new file mode 100644
index 0000000000..11b93ea792
--- /dev/null
+++ b/material-design-lite/material-design-lite.d.ts
@@ -0,0 +1,128 @@
+// Type definitions for material-design-lite v1.1.3
+// Project: https://getmdl.io
+// Definitions by: Brad Zacher <https://github.com/bradzacher/>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+declare module MaterialDesignLite {
+    interface ComponentHandler {
+        /**
+         * Searches existing DOM for elements of our component type and upgrades them
+         * if they have not already been upgraded.
+         */
+        upgradeDom() : void;
+        /**
+         * Searches existing DOM for elements of our component type and upgrades them
+         * if they have not already been upgraded.
+         *
+         * @param {string} jsClass the programatic name of the element class we
+         * need to create a new instance of.
+         */
+        upgradeDom(jsClass : string) : void;
+        /**
+         * Searches existing DOM for elements of our component type and upgrades them
+         * if they have not already been upgraded.
+         *
+         * @param {string} jsClass the programatic name of the element class we
+         * need to create a new instance of.
+         * @param {string} cssClass the name of the CSS class elements of this
+         * type will have.
+         */
+        upgradeDom(jsClass : string, cssClass : string) : void;
+
+        /**
+         * Upgrades a specific element rather than all in the DOM.
+         *
+         * @param {!Element} element The element we wish to upgrade.
+         */
+        upgradeElement(element : HTMLElement) : void;
+        /**
+         * Upgrades a specific element rather than all in the DOM.
+         *
+         * @param {!Element} element The element we wish to upgrade.
+         * @param {string} jsClass Optional name of the class we want to upgrade
+         * the element to.
+         */
+        upgradeElement(element : HTMLElement, jsClass : string) : void;
+
+        /**
+         * Upgrades a specific list of elements rather than all in the DOM.
+         *
+         * @param {!Element} elements
+         * The elements we wish to upgrade.
+         */
+        upgradeElements(elements : HTMLElement) : void;
+        /**
+         * Upgrades a specific list of elements rather than all in the DOM.
+         *
+         * @param {!Array<!Element>} elements
+         * The elements we wish to upgrade.
+         */
+        upgradeElements(elements : Array<HTMLElement>) : void;
+        /**
+         * Upgrades a specific list of elements rather than all in the DOM.
+         *
+         * @param {!NodeList} elements
+         * The elements we wish to upgrade.
+         */
+        upgradeElements(elements : NodeList) : void;
+        /**
+         * Upgrades a specific list of elements rather than all in the DOM.
+         *
+         * @param {!HTMLCollection} elements
+         * The elements we wish to upgrade.
+         */
+        upgradeElements(elements : HTMLCollection) : void;
+
+        /**
+         * Upgrades all registered components found in the current DOM. This is
+         * automatically called on window load.
+         */
+        upgradeAllRegistered() : void;
+
+        /**
+         * Allows user to be alerted to any upgrades that are performed for a given
+         * component type
+         *
+         * @param {string} jsClass The class name of the MDL component we wish
+         * to hook into for any upgrades performed.
+         * @param {function(!HTMLElement)} callback The function to call upon an
+         * upgrade. This function should expect 1 parameter - the HTMLElement which
+         * got upgraded.
+         */
+        registerUpgradedCallback(jsClass : string, callback : (element : HTMLElement) => any) : void;
+
+        /**
+         * Registers a class for future use and attempts to upgrade existing DOM.
+         *
+         * @param {componentHandler.ComponentConfigPublic} config the registration configuration
+         */
+        register(config : ComponentConfigPublic) : void;
+
+        /**
+         * Downgrade either a given node, an array of nodes, or a NodeList.
+         *
+         * @param {!Node} nodes The list of nodes.
+         */
+        downgradeElements(nodes : Node) : void;
+        /**
+         * Downgrade either a given node, an array of nodes, or a NodeList.
+         *
+         * @param {!Array<!Node>} nodes The list of nodes.
+         */
+        downgradeElements(nodes : Array<Node>) : void;
+        /**
+         * Downgrade either a given node, an array of nodes, or a NodeList.
+         *
+         * @param {!NodeList} nodes The list of nodes.
+         */
+        downgradeElements(nodes : NodeList) : void;
+    }
+    interface ComponentConfigPublic {
+        constructor(element : HTMLElement) : void;
+        classAsString : string;
+        cssClass : string;
+        widget? : string | boolean;
+    }
+}
+
+declare var componentHandler : MaterialDesignLite.ComponentHandler;
\ No newline at end of file