diff --git a/Content.Shared/Whitelist/EntityWhitelist.cs b/Content.Shared/Whitelist/EntityWhitelist.cs
index e08bb339e5..d477809128 100644
--- a/Content.Shared/Whitelist/EntityWhitelist.cs
+++ b/Content.Shared/Whitelist/EntityWhitelist.cs
@@ -2,6 +2,8 @@ using Content.Shared.Item;
 using Content.Shared.Tag;
 using Robust.Shared.Prototypes;
 using Robust.Shared.Serialization;
+using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom;
+using Robust.Shared.Serialization.TypeSerializers.Implementations.Generic;
 
 namespace Content.Shared.Whitelist;
 
@@ -32,8 +34,8 @@ public sealed partial class EntityWhitelist
     /// <summary>
     ///     Component names that are allowed in the whitelist.
     /// </summary>
-    [DataField] public string[]? Components;
-    // TODO yaml validation
+    [DataField(customTypeSerializer:typeof(CustomArraySerializer<string, ComponentNameSerializer>))]
+    public string[]? Components;
 
     /// <summary>
     ///     Item sizes that are allowed in the whitelist.
diff --git a/Content.Shared/Whitelist/EntityWhitelistSystem.cs b/Content.Shared/Whitelist/EntityWhitelistSystem.cs
index 69d9921efa..b29adb8e35 100644
--- a/Content.Shared/Whitelist/EntityWhitelistSystem.cs
+++ b/Content.Shared/Whitelist/EntityWhitelistSystem.cs
@@ -1,6 +1,7 @@
 using System.Diagnostics.CodeAnalysis;
 using Content.Shared.Item;
 using Content.Shared.Tag;
+using Robust.Shared.Utility;
 
 namespace Content.Shared.Whitelist;
 
@@ -44,21 +45,13 @@ public sealed class EntityWhitelistSystem : EntitySystem
     /// </summary>
     public bool IsValid(EntityWhitelist list, EntityUid uid)
     {
-        if (list.Components != null)
-        {
-            if (list.Registrations == null)
-            {
-                var regs = StringsToRegs(list.Components);
-                list.Registrations = new List<ComponentRegistration>();
-                list.Registrations.AddRange(regs);
-            }
-        }
+        list.Registrations ??= StringsToRegs(list.Components);
 
-        if (list.Registrations != null && list.Registrations.Count > 0)
+        if (list.Registrations != null)
         {
             foreach (var reg in list.Registrations)
             {
-                if (HasComp(uid, reg.Type))
+                if (EntityManager.HasComponent(uid, reg))
                 {
                     if (!list.RequireAll)
                         return true;
@@ -168,25 +161,18 @@ public sealed class EntityWhitelistSystem : EntitySystem
         return IsWhitelistFailOrNull(blacklist, uid);
     }
 
-    private List<ComponentRegistration> StringsToRegs(string[]? input)
+    private List<ComponentRegistration>? StringsToRegs(string[]? input)
     {
-        var list = new List<ComponentRegistration>();
-
         if (input == null || input.Length == 0)
-            return list;
+            return null;
 
+        var list = new List<ComponentRegistration>(input.Length);
         foreach (var name in input)
         {
-            var availability = Factory.GetComponentAvailability(name);
-            if (Factory.TryGetRegistration(name, out var registration)
-                && availability == ComponentAvailability.Available)
-            {
+            if (Factory.TryGetRegistration(name, out var registration))
                 list.Add(registration);
-            }
-            else if (availability == ComponentAvailability.Unknown)
-            {
-                Log.Error($"StringsToRegs failed: Unknown component name {name} passed to EntityWhitelist!");
-            }
+            else if (Factory.GetComponentAvailability(name) != ComponentAvailability.Ignore)
+                Log.Error($"{nameof(StringsToRegs)} failed: Unknown component name {name} passed to EntityWhitelist!");
         }
 
         return list;
diff --git a/Resources/Prototypes/Entities/Clothing/Back/specific.yml b/Resources/Prototypes/Entities/Clothing/Back/specific.yml
index 488c02e608..c440fe9a66 100644
--- a/Resources/Prototypes/Entities/Clothing/Back/specific.yml
+++ b/Resources/Prototypes/Entities/Clothing/Back/specific.yml
@@ -146,7 +146,6 @@
         - RawMaterial
         - Ingot
       components:
-        - ConstructionMaterial
         - Circuitboard
         - Flatpack
         - FloorTile