diff --git a/poulpe-model/src/main/resources/org/jtalks/poulpe/model/entity/applicationContext-dao.xml b/poulpe-model/src/main/resources/org/jtalks/poulpe/model/entity/applicationContext-dao.xml
index 67922ff81..fdb11cc9a 100644
--- a/poulpe-model/src/main/resources/org/jtalks/poulpe/model/entity/applicationContext-dao.xml
+++ b/poulpe-model/src/main/resources/org/jtalks/poulpe/model/entity/applicationContext-dao.xml
@@ -31,6 +31,8 @@
                  pointcut="execution(* org.jtalks.common.model.dao.Crud+.* (*))"/>
   </aop:config>
 
+  <bean id="validator" class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean"/>
+
   <!-- Declaration of DAO beans -->
   <bean id="branchDao" class="org.jtalks.poulpe.model.dao.hibernate.BranchHibernateDao" parent="genericDao"/>
 
diff --git a/poulpe-service/src/main/java/org/jtalks/poulpe/service/transactional/TransactionalUserService.java b/poulpe-service/src/main/java/org/jtalks/poulpe/service/transactional/TransactionalUserService.java
index 3e939be98..33d87d1e7 100644
--- a/poulpe-service/src/main/java/org/jtalks/poulpe/service/transactional/TransactionalUserService.java
+++ b/poulpe-service/src/main/java/org/jtalks/poulpe/service/transactional/TransactionalUserService.java
@@ -32,14 +32,14 @@
 import org.jtalks.poulpe.service.UserService;
 import org.jtalks.poulpe.service.exceptions.ValidationException;
 import org.springframework.transaction.interceptor.TransactionInterceptor;
+import org.springframework.validation.BeanPropertyBindingResult;
+import org.springframework.validation.BindingResult;
+import org.springframework.validation.FieldError;
+import org.springframework.validation.Validator;
 
 import javax.validation.ConstraintViolation;
 import javax.validation.ConstraintViolationException;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Collections;
-import java.util.List;
-import java.util.Set;
+import java.util.*;
 
 /**
  * User service class, contains methods needed to manipulate with {@code User} persistent entity.
@@ -56,6 +56,7 @@ public class TransactionalUserService implements UserService {
     private final UserBanner userBanner;
     private final AclManager aclManager;
     private final ComponentDao componentDao;
+    private Validator validator;
 
 
     /**
@@ -65,11 +66,12 @@ public class TransactionalUserService implements UserService {
      *                entities
      */
     public TransactionalUserService(UserDao userDao, UserBanner userBanner,
-                                    AclManager aclManager, ComponentDao componentDao) {
+                                    AclManager aclManager, ComponentDao componentDao, Validator validator) {
         this.userDao = userDao;
         this.userBanner = userBanner;
         this.aclManager = aclManager;
         this.componentDao = componentDao;
+        this.validator = validator;
     }
 
     /**
@@ -298,6 +300,17 @@ private PoulpeUser getPoulpeUser(String username) throws NotFoundException {
     @Override
     public void registration(PoulpeUser user) throws ValidationException {
         List<String> errors = new ArrayList<String>();
+
+        BindingResult validateErrors = new BeanPropertyBindingResult(user, "user");
+        validator.validate(user, validateErrors);
+        for (FieldError error : validateErrors.getFieldErrors()) {
+            if (error.getCodes() != null && error.getCodes().length > 0) {
+                errors.add(error.getCodes()[0]);
+            } else {
+                errors.add(error.getDefaultMessage());
+            }
+        }
+
         if (userDao.getByUsername(user.getUsername()) != null) {
             errors.add(User.USER_ALREADY_EXISTS);
         }
diff --git a/poulpe-service/src/main/resources/org/jtalks/poulpe/service/applicationContext-service.xml b/poulpe-service/src/main/resources/org/jtalks/poulpe/service/applicationContext-service.xml
index 509f1d17f..147dccff4 100644
--- a/poulpe-service/src/main/resources/org/jtalks/poulpe/service/applicationContext-service.xml
+++ b/poulpe-service/src/main/resources/org/jtalks/poulpe/service/applicationContext-service.xml
@@ -90,6 +90,7 @@
     <constructor-arg index="1" ref="userBanner"/>
     <constructor-arg index="2" ref="aclManager"/>
     <constructor-arg index="3" ref="componentDao"/>
+    <constructor-arg index="4" ref="validator"/>
   </bean>
   <bean id="groupService" class="org.jtalks.poulpe.service.transactional.TransactionalGroupService">
     <constructor-arg index="0" ref="groupDao"/>
diff --git a/poulpe-service/src/test/java/org/jtalks/poulpe/service/transactional/BeginTransactionTest.java b/poulpe-service/src/test/java/org/jtalks/poulpe/service/transactional/BeginTransactionTest.java
index 774987a8a..b1910dd4d 100644
--- a/poulpe-service/src/test/java/org/jtalks/poulpe/service/transactional/BeginTransactionTest.java
+++ b/poulpe-service/src/test/java/org/jtalks/poulpe/service/transactional/BeginTransactionTest.java
@@ -25,13 +25,12 @@
 import org.springframework.test.context.testng.AbstractTransactionalTestNGSpringContextTests;
 import org.springframework.test.context.transaction.TransactionConfiguration;
 import org.springframework.transaction.annotation.Transactional;
+import org.springframework.validation.Validator;
 import org.testng.annotations.BeforeMethod;
 import org.testng.annotations.Test;
 
 import static org.mockito.Matchers.any;
-import static org.mockito.Mockito.doNothing;
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.when;
+import static org.mockito.Mockito.*;
 
 @ContextConfiguration(locations = {"classpath:/org/jtalks/poulpe/model/entity/applicationContext-dao.xml"})
 @TransactionConfiguration(transactionManager = "transactionManager", defaultRollback = true)
@@ -44,6 +43,7 @@ public class BeginTransactionTest extends AbstractTransactionalTestNGSpringConte
     private UserDao userDao;
     private ComponentDao componentDaoMock;
     private AclManager aclManagerMock;
+    private Validator validator;
 
     @BeforeMethod
     public void setUp() {
@@ -51,7 +51,8 @@ public void setUp() {
         userDao = mock(UserDao.class);
         componentDaoMock = mock(ComponentDao.class);
         aclManagerMock = mock(AclManager.class);
-        userService = new TransactionalUserService(userDao, mock(UserBanner.class), aclManagerMock, componentDaoMock);
+        validator = mock(Validator.class);
+        userService = new TransactionalUserService(userDao, mock(UserBanner.class), aclManagerMock, componentDaoMock, validator);
     }
 
     @Test(enabled = false)
diff --git a/poulpe-service/src/test/java/org/jtalks/poulpe/service/transactional/TransactionalUserServiceTest.java b/poulpe-service/src/test/java/org/jtalks/poulpe/service/transactional/TransactionalUserServiceTest.java
index 13184ef4e..871447d76 100644
--- a/poulpe-service/src/test/java/org/jtalks/poulpe/service/transactional/TransactionalUserServiceTest.java
+++ b/poulpe-service/src/test/java/org/jtalks/poulpe/service/transactional/TransactionalUserServiceTest.java
@@ -32,6 +32,7 @@
 import org.jtalks.poulpe.model.sorting.UserSearchRequest;
 import org.jtalks.poulpe.service.exceptions.ValidationException;
 import org.mockito.MockitoAnnotations;
+import org.springframework.validation.Validator;
 import org.testng.annotations.BeforeMethod;
 import org.testng.annotations.Test;
 
@@ -54,7 +55,7 @@
  * @author maxim reshetov
  */
 
-public class TransactionalUserServiceTest{
+public class TransactionalUserServiceTest {
     private static final String USERNAME = "username";
     private static final String HASED_PASSWORD = "password";
     private static final PoulpeUser POULPE_USER = new PoulpeUser(USERNAME, "email", HASED_PASSWORD, "salt");
@@ -71,6 +72,7 @@ public class TransactionalUserServiceTest{
     final String searchString = "searchString";
     private ComponentDao componentDaoMock;
     private AclManager aclManagerMock;
+    private Validator validator;
 
     @BeforeMethod
     public void setUp() {
@@ -78,7 +80,8 @@ public void setUp() {
         userDao = mock(UserDao.class);
         componentDaoMock = mock(ComponentDao.class);
         aclManagerMock = mock(AclManager.class);
-        userService = new TransactionalUserService(userDao, mock(UserBanner.class), aclManagerMock, componentDaoMock);
+        validator = mock(Validator.class);
+        userService = new TransactionalUserService(userDao, mock(UserBanner.class), aclManagerMock, componentDaoMock, validator);
     }
 
     @Test
@@ -126,8 +129,8 @@ public void testUpdateUser() {
     public void TestFindUsersNotInList(){
         List<PoulpeUser> users = new ArrayList<PoulpeUser>();
         users.add(user());
-        userService.findUsersNotInList(searchString,users);
-        verify(userDao).findUsersNotInList(searchString,users, Pages.NONE);
+        userService.findUsersNotInList(searchString, users);
+        verify(userDao).findUsersNotInList(searchString, users, Pages.NONE);
     }
 
     @Test