diff --git a/AsbCloudInfrastructure/Services/AuthService.cs b/AsbCloudInfrastructure/Services/AuthService.cs
index 53754c58..f552d92c 100644
--- a/AsbCloudInfrastructure/Services/AuthService.cs
+++ b/AsbCloudInfrastructure/Services/AuthService.cs
@@ -69,19 +69,19 @@ namespace AsbCloudInfrastructure.Services
 
         public int Register(UserDto userDto)
         {
-            if (userDto.Login.Length < 3)
+            if (userDto.Login is null || userDto.Login.Length is < 3 or > 50)
                 return -1;
 
-            if (userDto.Password.Length < 3)
+            if (userDto.Password is null || userDto.Password.Length is < 3 or > 50)
                 return -2;
             
-            if (userDto.Email.Length > 255)
+            if (userDto.Email?.Length > 255)
                 return -3;
             
-            if (userDto.Phone.Length > 50)
+            if (userDto.Phone?.Length > 50)
                 return -4;
             
-            if (userDto.Position.Length > 255)
+            if (userDto.Position?.Length > 255)
                 return -5;
 
             var salt = GenerateSalt();
diff --git a/AsbCloudWebApi/Controllers/AuthController.cs b/AsbCloudWebApi/Controllers/AuthController.cs
index 58753b19..09f34522 100644
--- a/AsbCloudWebApi/Controllers/AuthController.cs
+++ b/AsbCloudWebApi/Controllers/AuthController.cs
@@ -54,8 +54,9 @@ namespace AsbCloudWebApi.Controllers
         }
 
         /// <summary>
-        /// Регистрация пользователя. Доступна администратору
+        /// Отправить заявку на регистрацию. Заявка подтверждается администратором.
         /// </summary>
+        /// <param name="user">Информация о новом пользователе</param>
         /// <returns code="200">Ок</returns>
         [HttpPost]
         public IActionResult Register(UserDto user)