diff --git a/src/blackmisc/aviation/avionicsbase.h b/src/blackmisc/aviation/avionicsbase.h
index 08688d1bc..a939fb9b2 100644
--- a/src/blackmisc/aviation/avionicsbase.h
+++ b/src/blackmisc/aviation/avionicsbase.h
@@ -14,6 +14,15 @@
 
 namespace BlackMisc
 {
+
+    namespace Aviation { class CAvionicsBase; }
+
+    //! \private
+    template <> struct CValueObjectPolicy<Aviation::CAvionicsBase> : public CValueObjectPolicy<>
+    {
+        using MetaType = Policy::MetaType::None;
+    };
+
     namespace Aviation
     {
 
diff --git a/src/blackmisc/aviation/comsystem.h b/src/blackmisc/aviation/comsystem.h
index cac15d62c..dc843ba90 100644
--- a/src/blackmisc/aviation/comsystem.h
+++ b/src/blackmisc/aviation/comsystem.h
@@ -21,6 +21,7 @@ namespace BlackMisc
     //! \private
     template <> struct CValueObjectPolicy<Aviation::CComSystem> : public CValueObjectPolicy<>
     {
+        using MetaType = Policy::MetaType::Default;
         using LessThan = Policy::LessThan::None;
         using Compare = Policy::Compare::None;
         using Hash = Policy::Hash::Own;
diff --git a/src/blackmisc/aviation/transponder.h b/src/blackmisc/aviation/transponder.h
index 55c58f9d4..c0cb794be 100644
--- a/src/blackmisc/aviation/transponder.h
+++ b/src/blackmisc/aviation/transponder.h
@@ -16,6 +16,15 @@
 
 namespace BlackMisc
 {
+
+    namespace Aviation { class CTransponder; }
+
+    //! \private
+    template <> struct CValueObjectPolicy<Aviation::CTransponder> : public CValueObjectPolicy<>
+    {
+        using MetaType = Policy::MetaType::Default;
+    };
+
     namespace Aviation
     {
         //! Transponder
diff --git a/src/blackmisc/containerbase.h b/src/blackmisc/containerbase.h
index 7cda3d6f5..b2c471293 100644
--- a/src/blackmisc/containerbase.h
+++ b/src/blackmisc/containerbase.h
@@ -49,7 +49,9 @@ namespace BlackMisc
     //! \private
     template <template <class> class C, class T, class CIt>
     struct CValueObjectPolicy<CContainerBase<C, T, CIt>> : public CValueObjectLegacy
-    {};
+    {
+        using MetaType = Policy::MetaType::None;
+    };
 
     /*!
      * \brief Base class for CCollection and CSequence adding mutating operations and CValueObject facility on top of CRangeBase.
diff --git a/src/blackmisc/geo/earthangle.h b/src/blackmisc/geo/earthangle.h
index a7fcf36f4..18d3a367e 100644
--- a/src/blackmisc/geo/earthangle.h
+++ b/src/blackmisc/geo/earthangle.h
@@ -16,6 +16,14 @@
 
 namespace BlackMisc
 {
+    namespace Geo { template <class> class CEarthAngle; }
+
+    //! \private
+    template <class LATorLON> struct CValueObjectPolicy<Geo::CEarthAngle<LATorLON>> : public CValueObjectPolicy<>
+    {
+        using MetaType = Policy::MetaType::None;
+    };
+
     namespace Geo
     {
         /*!
diff --git a/src/blackmisc/geo/latitude.h b/src/blackmisc/geo/latitude.h
index af195aeee..5b4920292 100644
--- a/src/blackmisc/geo/latitude.h
+++ b/src/blackmisc/geo/latitude.h
@@ -17,6 +17,13 @@
 
 namespace BlackMisc
 {
+
+    //! \private
+    template <> struct CValueObjectPolicy<Geo::CLatitude> : public CValueObjectPolicy<>
+    {
+        using MetaType = Policy::MetaType::Default;
+    };
+
     namespace Geo
     {
 
diff --git a/src/blackmisc/geo/longitude.h b/src/blackmisc/geo/longitude.h
index 2d11228fd..be46d3814 100644
--- a/src/blackmisc/geo/longitude.h
+++ b/src/blackmisc/geo/longitude.h
@@ -16,6 +16,13 @@
 
 namespace BlackMisc
 {
+
+    //! \private
+    template <> struct CValueObjectPolicy<Geo::CLongitude> : public CValueObjectPolicy<>
+    {
+        using MetaType = Policy::MetaType::Default;
+    };
+
     namespace Geo
     {
 
diff --git a/src/blackmisc/pq/acceleration.h b/src/blackmisc/pq/acceleration.h
index 35c91a8f5..1170164f8 100644
--- a/src/blackmisc/pq/acceleration.h
+++ b/src/blackmisc/pq/acceleration.h
@@ -16,6 +16,13 @@
 
 namespace BlackMisc
 {
+
+    //! \private
+    template <> struct CValueObjectPolicy<PhysicalQuantities::CAcceleration> : public CValueObjectPolicy<>
+    {
+        using MetaType = Policy::MetaType::DefaultAndQList;
+    };
+
     namespace PhysicalQuantities
     {
 
diff --git a/src/blackmisc/pq/angle.h b/src/blackmisc/pq/angle.h
index e00617858..7e20f108d 100644
--- a/src/blackmisc/pq/angle.h
+++ b/src/blackmisc/pq/angle.h
@@ -17,6 +17,13 @@
 
 namespace BlackMisc
 {
+
+    //! \private
+    template <> struct CValueObjectPolicy<PhysicalQuantities::CAngle> : public CValueObjectPolicy<>
+    {
+        using MetaType = Policy::MetaType::DefaultAndQList;
+    };
+
     namespace PhysicalQuantities
     {
         //! Physical unit angle (radians, degrees)
diff --git a/src/blackmisc/pq/frequency.h b/src/blackmisc/pq/frequency.h
index d5de40db1..b7eb79a97 100644
--- a/src/blackmisc/pq/frequency.h
+++ b/src/blackmisc/pq/frequency.h
@@ -16,6 +16,13 @@
 
 namespace BlackMisc
 {
+
+    //! \private
+    template <> struct CValueObjectPolicy<PhysicalQuantities::CFrequency> : public CValueObjectPolicy<>
+    {
+        using MetaType = Policy::MetaType::DefaultAndQList;
+    };
+
     namespace PhysicalQuantities
     {
         /*!
diff --git a/src/blackmisc/pq/length.h b/src/blackmisc/pq/length.h
index 9a47f6cad..f6ac53035 100644
--- a/src/blackmisc/pq/length.h
+++ b/src/blackmisc/pq/length.h
@@ -16,6 +16,13 @@
 
 namespace BlackMisc
 {
+
+    //! \private
+    template <> struct CValueObjectPolicy<PhysicalQuantities::CLength> : public CValueObjectPolicy<>
+    {
+        using MetaType = Policy::MetaType::DefaultAndQList;
+    };
+
     namespace PhysicalQuantities
     {
 
diff --git a/src/blackmisc/pq/mass.h b/src/blackmisc/pq/mass.h
index 46dee0485..1a44e3bce 100644
--- a/src/blackmisc/pq/mass.h
+++ b/src/blackmisc/pq/mass.h
@@ -16,6 +16,13 @@
 
 namespace BlackMisc
 {
+
+    //! \private
+    template <> struct CValueObjectPolicy<PhysicalQuantities::CMass> : public CValueObjectPolicy<>
+    {
+        using MetaType = Policy::MetaType::DefaultAndQList;
+    };
+
     namespace PhysicalQuantities
     {
 
diff --git a/src/blackmisc/pq/physicalquantity.h b/src/blackmisc/pq/physicalquantity.h
index bbd298826..e2c9dc035 100644
--- a/src/blackmisc/pq/physicalquantity.h
+++ b/src/blackmisc/pq/physicalquantity.h
@@ -31,7 +31,7 @@ namespace BlackMisc
     //! \private
     template <class MU, class PQ> struct CValueObjectPolicy<PhysicalQuantities::CPhysicalQuantity<MU, PQ>> : public CValueObjectPolicy<>
     {
-        using MetaType = Policy::MetaType::DefaultAndQList;
+        using MetaType = Policy::MetaType::None;
         using Equals = Policy::Equals::None;
         using LessThan = Policy::LessThan::None;
         using Compare = Policy::Compare::None;
diff --git a/src/blackmisc/pq/pressure.h b/src/blackmisc/pq/pressure.h
index c22a441ce..e509a2833 100644
--- a/src/blackmisc/pq/pressure.h
+++ b/src/blackmisc/pq/pressure.h
@@ -16,6 +16,13 @@
 
 namespace BlackMisc
 {
+
+    //! \private
+    template <> struct CValueObjectPolicy<PhysicalQuantities::CPressure> : public CValueObjectPolicy<>
+    {
+        using MetaType = Policy::MetaType::DefaultAndQList;
+    };
+
     namespace PhysicalQuantities
     {
 
diff --git a/src/blackmisc/pq/speed.h b/src/blackmisc/pq/speed.h
index 2e4799912..911ae40f3 100644
--- a/src/blackmisc/pq/speed.h
+++ b/src/blackmisc/pq/speed.h
@@ -16,6 +16,13 @@
 
 namespace BlackMisc
 {
+
+    //! \private
+    template <> struct CValueObjectPolicy<PhysicalQuantities::CSpeed> : public CValueObjectPolicy<>
+    {
+        using MetaType = Policy::MetaType::DefaultAndQList;
+    };
+
     namespace PhysicalQuantities
     {
 
diff --git a/src/blackmisc/pq/temperature.h b/src/blackmisc/pq/temperature.h
index efcfef932..194bc7a7a 100644
--- a/src/blackmisc/pq/temperature.h
+++ b/src/blackmisc/pq/temperature.h
@@ -16,6 +16,13 @@
 
 namespace BlackMisc
 {
+
+    //! \private
+    template <> struct CValueObjectPolicy<PhysicalQuantities::CTemperature> : public CValueObjectPolicy<>
+    {
+        using MetaType = Policy::MetaType::DefaultAndQList;
+    };
+
     namespace PhysicalQuantities
     {
 
diff --git a/src/blackmisc/pq/time.h b/src/blackmisc/pq/time.h
index ecb1b5d97..a798e6924 100644
--- a/src/blackmisc/pq/time.h
+++ b/src/blackmisc/pq/time.h
@@ -16,6 +16,13 @@
 
 namespace BlackMisc
 {
+
+    //! \private
+    template <> struct CValueObjectPolicy<PhysicalQuantities::CTime> : public CValueObjectPolicy<>
+    {
+        using MetaType = Policy::MetaType::DefaultAndQList;
+    };
+
     namespace PhysicalQuantities
     {
 
diff --git a/src/blackmisc/valueobject_policy.h b/src/blackmisc/valueobject_policy.h
index 793e84407..f8fe8936b 100644
--- a/src/blackmisc/valueobject_policy.h
+++ b/src/blackmisc/valueobject_policy.h
@@ -80,6 +80,14 @@ namespace BlackMisc
                 template <class T, class...>
                 static void registerImpl() { Default::registerImpl<T>(); Default::registerImpl<QList<T>>(); }
             };
+
+            //! CValueObject policy for a class which should not register itself as meta type
+            struct None
+            {
+                //! Register with QMetaType
+                template <class T, class...>
+                static void registerImpl() { }
+            };
         }
 
         namespace Equals