diff --git a/AsbCloudApp/Data/AuthDto.cs b/AsbCloudApp/Data/AuthDto.cs
index 9235b40f..6b3d42ad 100644
--- a/AsbCloudApp/Data/AuthDto.cs
+++ b/AsbCloudApp/Data/AuthDto.cs
@@ -8,11 +8,11 @@
         /// <summary>
         /// Имя пользователя для входа
         /// </summary>
-        public string Login { get; set; }
+        public string Login { get; set; } = null!;
 
         /// <summary>
         /// Пароль пользователя для входа
         /// </summary>
-        public string Password { get; set; }
+        public string Password { get; set; } = null!;
     }
 }
diff --git a/AsbCloudApp/Data/ClusterDto.cs b/AsbCloudApp/Data/ClusterDto.cs
index d73bffb6..d625c9c2 100644
--- a/AsbCloudApp/Data/ClusterDto.cs
+++ b/AsbCloudApp/Data/ClusterDto.cs
@@ -3,7 +3,6 @@ using System.Linq;
 
 namespace AsbCloudApp.Data
 {
-#nullable enable
     /// <summary>
     /// DTO кустов
     /// </summary>
diff --git a/AsbCloudApp/Data/CompanyDto.cs b/AsbCloudApp/Data/CompanyDto.cs
index 99e1fc47..0349013c 100644
--- a/AsbCloudApp/Data/CompanyDto.cs
+++ b/AsbCloudApp/Data/CompanyDto.cs
@@ -2,7 +2,6 @@
 
 namespace AsbCloudApp.Data
 {
-#nullable enable
     /// <summary>
     /// DTO компании
     /// </summary>
diff --git a/AsbCloudApp/Data/CompanyTypeDto.cs b/AsbCloudApp/Data/CompanyTypeDto.cs
index a2a83697..1e46787a 100644
--- a/AsbCloudApp/Data/CompanyTypeDto.cs
+++ b/AsbCloudApp/Data/CompanyTypeDto.cs
@@ -11,7 +11,7 @@
         /// <summary>
         /// Название типа компании
         /// </summary>
-        public string Caption { get; set; }
+        public string Caption { get; set; } = null!;
 
     }
 }
diff --git a/AsbCloudApp/Data/DrillerDto.cs b/AsbCloudApp/Data/DrillerDto.cs
index a7fc255b..cf1a9ea5 100644
--- a/AsbCloudApp/Data/DrillerDto.cs
+++ b/AsbCloudApp/Data/DrillerDto.cs
@@ -1,6 +1,5 @@
 namespace AsbCloudApp.Data
 {
-#nullable enable
     /// <summary>
     /// Описание данных для бурильщика
     /// </summary>
@@ -26,5 +25,4 @@
         /// </summary>
         public string? Patronymic { get; set; }
     }
-#nullable disable
 }
diff --git a/AsbCloudApp/Data/DrillingProgramPartDto.cs b/AsbCloudApp/Data/DrillingProgramPartDto.cs
index 131b328b..482fe0c4 100644
--- a/AsbCloudApp/Data/DrillingProgramPartDto.cs
+++ b/AsbCloudApp/Data/DrillingProgramPartDto.cs
@@ -3,7 +3,6 @@ using System.Linq;
 
 namespace AsbCloudApp.Data
 {
-#nullable enable
     /// <summary>
     /// Часть программы бурения
     /// </summary>
diff --git a/AsbCloudApp/Data/DrillingProgramStateDto.cs b/AsbCloudApp/Data/DrillingProgramStateDto.cs
index 9752786d..791d80b4 100644
--- a/AsbCloudApp/Data/DrillingProgramStateDto.cs
+++ b/AsbCloudApp/Data/DrillingProgramStateDto.cs
@@ -3,7 +3,6 @@ using System.Linq;
 
 namespace AsbCloudApp.Data
 {
-#nullable enable
     /// <summary>
     /// DTO состояния формирования программы бурения
     /// </summary>
diff --git a/AsbCloudApp/Data/WITS/Record7Dto.cs b/AsbCloudApp/Data/WITS/Record7Dto.cs
index 43c370d1..0e7664ff 100644
--- a/AsbCloudApp/Data/WITS/Record7Dto.cs
+++ b/AsbCloudApp/Data/WITS/Record7Dto.cs
@@ -82,7 +82,7 @@ namespace AsbCloudApp.Data.WITS
         /// ValueType = "A"
         /// </summary>
 
-        public string Svytype { get; set; }
+        public string Svytype { get; set; } = string.Empty;
 
         /// <summary>
         /// RecordId = 7,