diff --git a/AsbCloudApp/Requests/LimitingParameterRequest.cs b/AsbCloudApp/Requests/LimitingParameterRequest.cs
index fefb006f..0fa64feb 100644
--- a/AsbCloudApp/Requests/LimitingParameterRequest.cs
+++ b/AsbCloudApp/Requests/LimitingParameterRequest.cs
@@ -1,12 +1,9 @@
 using System;
-using System.Collections.Generic;
 using System.ComponentModel.DataAnnotations;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
 namespace AsbCloudApp.Requests
 {
+#nullable enable
     /// <summary>
     /// Класс с фильтрами для запроса по ограничивающим параметрам
     /// </summary>
@@ -38,4 +35,5 @@ namespace AsbCloudApp.Requests
         /// </summary>
         public double? LtDepth { get; set; }
     }
+#nullable disable
 }
diff --git a/AsbCloudInfrastructure/Repository/LimitingParameterRepository.cs b/AsbCloudInfrastructure/Repository/LimitingParameterRepository.cs
index f017d79b..04f02338 100644
--- a/AsbCloudInfrastructure/Repository/LimitingParameterRepository.cs
+++ b/AsbCloudInfrastructure/Repository/LimitingParameterRepository.cs
@@ -1,17 +1,10 @@
 using AsbCloudApp.Data;
 using AsbCloudApp.Repositories;
 using AsbCloudApp.Requests;
-using AsbCloudDb;
 using AsbCloudDb.Model;
-using AsbCloudDb.Model.Subsystems;
-using AsbCloudInfrastructure.Services;
 using Microsoft.EntityFrameworkCore;
-using Org.BouncyCastle.Asn1.Ocsp;
-using System;
 using System.Collections.Generic;
-using System.Diagnostics;
 using System.Linq;
-using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
 
diff --git a/AsbCloudInfrastructure/Services/LimitingParameterService.cs b/AsbCloudInfrastructure/Services/LimitingParameterService.cs
index 80082fca..fdaa8e57 100644
--- a/AsbCloudInfrastructure/Services/LimitingParameterService.cs
+++ b/AsbCloudInfrastructure/Services/LimitingParameterService.cs
@@ -2,7 +2,6 @@
 using AsbCloudApp.Repositories;
 using AsbCloudApp.Requests;
 using AsbCloudApp.Services;
-using System;
 using System.Collections.Generic;
 using System.Threading;
 using System.Threading.Tasks;
diff --git a/AsbCloudWebApi/Controllers/LimitingParameterController.cs b/AsbCloudWebApi/Controllers/LimitingParameterController.cs
index 6dcbe838..3c972d56 100644
--- a/AsbCloudWebApi/Controllers/LimitingParameterController.cs
+++ b/AsbCloudWebApi/Controllers/LimitingParameterController.cs
@@ -1,14 +1,11 @@
 using AsbCloudApp.Data;
 using AsbCloudApp.Requests;
 using AsbCloudApp.Services;
-using AsbCloudApp.Services.Subsystems;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
 using System.Collections.Generic;
 using System.Threading.Tasks;
 using System.Threading;
-using AsbCloudDb.Model;
-using AsbCloudInfrastructure.Services;
 
 namespace AsbCloudWebApi.Controllers
 {