diff --git a/src/applications/accredited-representative-portal/auth.js b/src/applications/accredited-representative-portal/auth.js
new file mode 100644
index 000000000000..7390ad8fe493
--- /dev/null
+++ b/src/applications/accredited-representative-portal/auth.js
@@ -0,0 +1,21 @@
+import { apiRequest } from '@department-of-veterans-affairs/platform-utilities/api';
+
+let user = null;
+
+export async function fetchUser() {
+  try {
+    user = await apiRequest('/accredited_representative_portal/v0/user');
+    return user;
+  } catch (error) {
+    user = null;
+    throw error;
+  }
+}
+
+export function getUser() {
+  return user;
+}
+
+export function isAuthenticated() {
+  return user !== null;
+}
diff --git a/src/applications/accredited-representative-portal/components/common/Header/common/UserNav.jsx b/src/applications/accredited-representative-portal/components/common/Header/common/UserNav.jsx
index 2c26fd354adc..4d84fd551a37 100644
--- a/src/applications/accredited-representative-portal/components/common/Header/common/UserNav.jsx
+++ b/src/applications/accredited-representative-portal/components/common/Header/common/UserNav.jsx
@@ -1,12 +1,7 @@
-import React, { useState, useRef, useEffect } from 'react';
-import { useSelector } from 'react-redux';
+import React, { useState, useRef, useEffect, useContext } from 'react';
 import PropTypes from 'prop-types';
-
+import UserContext from '../../../../userContext';
 import { SIGN_IN_URL, SIGN_OUT_URL } from '../../../../constants';
-import {
-  selectUserProfile,
-  selectIsUserLoading,
-} from '../../../../selectors/user';
 
 const generateUniqueId = () =>
   `account-menu-${Math.random()
@@ -14,8 +9,9 @@ const generateUniqueId = () =>
     .substring(2, 11)}`;
 
 const UserNav = ({ isMobile }) => {
-  const profile = useSelector(selectUserProfile);
-  const isLoading = useSelector(selectIsUserLoading);
+  const user = useContext(UserContext);
+  const profile = user?.profile;
+  const isLoading = !profile;
   const uniqueId = useRef(generateUniqueId());
 
   const [isDropdownOpen, setDropdownOpen] = useState(false);
@@ -130,12 +126,7 @@ const UserNav = ({ isMobile }) => {
 };
 
 UserNav.propTypes = {
-  isLoading: PropTypes.bool,
   isMobile: PropTypes.bool,
-  profile: PropTypes.shape({
-    firstName: PropTypes.string,
-    lastName: PropTypes.string,
-  }),
 };
 
 export default UserNav;
diff --git a/src/applications/accredited-representative-portal/routes.jsx b/src/applications/accredited-representative-portal/routes.jsx
index a013175aea1e..b903708d0187 100644
--- a/src/applications/accredited-representative-portal/routes.jsx
+++ b/src/applications/accredited-representative-portal/routes.jsx
@@ -1,5 +1,11 @@
 import React from 'react';
-import { createBrowserRouter, useNavigation, Outlet } from 'react-router-dom';
+import {
+  createBrowserRouter,
+  useNavigation,
+  useLoaderData,
+  Navigate,
+  Outlet,
+} from 'react-router-dom';
 
 import { VaLoadingIndicator } from '@department-of-veterans-affairs/component-library/dist/react-bindings';
 import App from './containers/App';
@@ -12,6 +18,9 @@ import POARequestDetailsPage, {
   poaRequestLoader,
 } from './containers/POARequestDetailsPage';
 import ErrorMessage from './components/common/ErrorMessage';
+import UserContext from './userContext';
+import { userLoader } from './userLoader';
+import { SIGN_IN_URL } from './constants';
 
 const LoadingWrapper = () => {
   const navigation = useNavigation();
@@ -23,6 +32,20 @@ const LoadingWrapper = () => {
   return <Outlet />;
 };
 
+const AuthenticatedRoutes = () => {
+  const user = useLoaderData();
+
+  if (!user || !user.profile) {
+    return <Navigate to={SIGN_IN_URL} replace />;
+  }
+
+  return (
+    <UserContext.Provider value={user}>
+      <SignedInLayoutWrapper />
+    </UserContext.Provider>
+  );
+};
+
 const router = createBrowserRouter(
   [
     {
@@ -33,10 +56,12 @@ const router = createBrowserRouter(
           element: <LandingPage />,
         },
         {
-          element: <SignedInLayoutWrapper />,
+          path: '/',
+          element: <LoadingWrapper />,
           children: [
             {
-              element: <LoadingWrapper />,
+              loader: userLoader,
+              element: <AuthenticatedRoutes />,
               children: [
                 {
                   path: 'poa-requests',
diff --git a/src/applications/accredited-representative-portal/userContext.js b/src/applications/accredited-representative-portal/userContext.js
new file mode 100644
index 000000000000..ae66c8cdf5a0
--- /dev/null
+++ b/src/applications/accredited-representative-portal/userContext.js
@@ -0,0 +1,5 @@
+import { createContext } from 'react';
+
+const UserContext = createContext(null);
+
+export default UserContext;
diff --git a/src/applications/accredited-representative-portal/userLoader.js b/src/applications/accredited-representative-portal/userLoader.js
new file mode 100644
index 000000000000..3e9f341397ab
--- /dev/null
+++ b/src/applications/accredited-representative-portal/userLoader.js
@@ -0,0 +1,16 @@
+import { redirect } from 'react-router';
+import { fetchUser, isAuthenticated } from './auth';
+import { SIGN_IN_URL } from './constants';
+
+export async function userLoader() {
+  try {
+    const user = await fetchUser();
+    if (!isAuthenticated()) {
+      redirect(SIGN_IN_URL);
+    }
+    return user;
+  } catch (error) {
+    redirect(SIGN_IN_URL);
+    return null;
+  }
+}