diff --git a/include/vast/Dialect/HighLevel/HighLevelOps.hpp b/include/vast/Dialect/HighLevel/HighLevelOps.hpp
index a22fbff157..85bff6e749 100644
--- a/include/vast/Dialect/HighLevel/HighLevelOps.hpp
+++ b/include/vast/Dialect/HighLevel/HighLevelOps.hpp
@@ -24,6 +24,7 @@ VAST_UNRELAX_WARNINGS
 #include "vast/Interfaces/TypeTraitExprInterface.hpp"
 #include "vast/Interfaces/AST/DeclInterface.hpp"
 
+#include "vast/Dialect/Core/Interfaces/DeclStorageInterface.hpp"
 
 #define GET_OP_CLASSES
 #include "vast/Dialect/HighLevel/HighLevel.h.inc"
diff --git a/include/vast/Dialect/HighLevel/HighLevelVar.td b/include/vast/Dialect/HighLevel/HighLevelVar.td
index eecbd9c7cd..44202040bc 100644
--- a/include/vast/Dialect/HighLevel/HighLevelVar.td
+++ b/include/vast/Dialect/HighLevel/HighLevelVar.td
@@ -9,8 +9,7 @@ include "vast/Dialect/Core/Interfaces/DeclStorageInterface.td"
 
 // Variable Operation
 def HighLevel_VarDeclOp
-  : HighLevel_Op< "var", [Core_VarSymbol] >
-  , HighLevel_StorageSpecifiers
+  : HighLevel_Op< "var", [Core_VarSymbol, Core_DeclStorageInterface, DeclareOpInterfaceMethods< Core_DeclStorageInterface >,] >
 {
   let summary = "VAST variable declaration";
   let description = [{ VAST variable declaration }];
diff --git a/lib/vast/Dialect/HighLevel/HighLevelVar.cpp b/lib/vast/Dialect/HighLevel/HighLevelVar.cpp
index 7c5af38276..41f3275abf 100644
--- a/lib/vast/Dialect/HighLevel/HighLevelVar.cpp
+++ b/lib/vast/Dialect/HighLevel/HighLevelVar.cpp
@@ -9,89 +9,4 @@
 
 namespace vast::hl
 {
-    bool isFileContext(DeclContextKind kind) {
-        return kind == DeclContextKind::dc_translation_unit
-            || kind == DeclContextKind::dc_namespace;
-    }
-
-    bool VarDeclOp::isInFileContext() { return isFileContext(getDeclContextKind()); }
-
-    bool isFunctionOrMethodContext(DeclContextKind kind) {
-        return kind == DeclContextKind::dc_function
-            || kind == DeclContextKind::dc_method
-            || kind == DeclContextKind::dc_capture;
-    }
-
-    bool VarDeclOp::isInFunctionOrMethodContext() {
-        return isFunctionOrMethodContext(getDeclContextKind());
-    }
-
-    bool isRecordContext(DeclContextKind kind) { return kind == DeclContextKind::dc_record; }
-
-    bool VarDeclOp::isInRecordContext() { return isRecordContext(getDeclContextKind()); }
-
-    DeclContextKind VarDeclOp::getDeclContextKind() {
-        auto st = core::get_effective_symbol_table_for< core::var_symbol >(*this)->get_defining_operation();
-        if (mlir::isa< mlir::FunctionOpInterface >(st))
-            return DeclContextKind::dc_function;
-        if (st->hasTrait< core::ScopeLikeTrait >())
-            return DeclContextKind::dc_function;
-        if (mlir::isa< core::ModuleOp >(st))
-            return DeclContextKind::dc_translation_unit;
-        if (mlir::isa< StructDeclOp >(st))
-            return DeclContextKind::dc_record;
-        if (mlir::isa< EnumDeclOp >(st))
-            return DeclContextKind::dc_enum;
-        VAST_UNIMPLEMENTED_MSG("unknown declaration context");
-    }
-
-    bool VarDeclOp::isStaticDataMember() {
-        // If it wasn't static, it would be a FieldDecl.
-        return isInRecordContext();
-    }
-
-    bool VarDeclOp::isFileVarDecl() {
-        return isInFileContext() || isStaticDataMember();
-    }
-
-    bool VarDeclOp::isLocalVarDecl() { return isInFunctionOrMethodContext(); }
-
-    bool VarDeclOp::hasLocalStorage() {
-        switch (getStorageClass()) {
-            case StorageClass::sc_none:
-                return !isFileVarDecl() && getThreadStorageClass() == TSClass::tsc_none;
-            case StorageClass::sc_register: return isLocalVarDecl();
-            case StorageClass::sc_auto: return true;
-            case StorageClass::sc_extern:
-            case StorageClass::sc_static:
-            case StorageClass::sc_private_extern: return false;
-        }
-
-        VAST_UNIMPLEMENTED_MSG("unknown starage class");
-    }
-
-    bool VarDeclOp::isStaticLocal() {
-        if (isFileVarDecl())
-            return false;
-        auto sc = getStorageClass();
-        if (sc == StorageClass::sc_static)
-            return true;
-        auto tsc = getThreadStorageClass();
-        return sc == StorageClass::sc_none && tsc == TSClass::tsc_cxx_thread;
-    }
-
-    bool VarDeclOp::hasExternalStorage() {
-        auto sc = getStorageClass();
-        return sc == StorageClass::sc_extern || sc == StorageClass::sc_private_extern;
-    }
-
-    bool VarDeclOp::hasGlobalStorage() { return !hasLocalStorage(); }
-
-    StorageDuration VarDeclOp::getStorageDuration() {
-        if (hasLocalStorage())
-            return StorageDuration::sd_automatic;
-        if (getThreadStorageClass() != TSClass::tsc_none)
-            return StorageDuration::sd_thread;
-        return StorageDuration::sd_static;
-    }
 } // namespace vast::hl