diff --git a/gogen/genir_test.go b/gogen/genir_test.go
index 5545c510..71dfc2bc 100644
--- a/gogen/genir_test.go
+++ b/gogen/genir_test.go
@@ -161,6 +161,7 @@ func TestGenerateIR(t *testing.T) {
 								SchemaPath:        "/parent/child/state/zero",
 								LeafrefTargetPath: "",
 								Description:       "",
+								ConfigFalse:       true,
 							},
 							Type: ygen.LeafNode,
 							LangType: &ygen.MappedType{
@@ -211,6 +212,7 @@ func TestGenerateIR(t *testing.T) {
 								SchemaPath:        "/parent/child/state/two",
 								LeafrefTargetPath: "",
 								Description:       "",
+								ConfigFalse:       true,
 							},
 							Type: ygen.LeafNode,
 							LangType: &ygen.MappedType{
@@ -451,6 +453,7 @@ func TestGenerateIR(t *testing.T) {
 								SchemaPath:        "/parent/child/state/zero",
 								LeafrefTargetPath: "",
 								Description:       "",
+								ConfigFalse:       true,
 							},
 							Type:                    ygen.LeafNode,
 							LangType:                &ygen.MappedType{NativeType: "string", ZeroValue: `""`},
@@ -472,6 +475,7 @@ func TestGenerateIR(t *testing.T) {
 								ShadowSchemaPath:  "/parent/child/config/one",
 								LeafrefTargetPath: "",
 								Description:       "",
+								ConfigFalse:       true,
 							},
 							Type: ygen.LeafNode,
 							LangType: &ygen.MappedType{
@@ -498,6 +502,7 @@ func TestGenerateIR(t *testing.T) {
 								SchemaPath:        "/parent/child/state/two",
 								LeafrefTargetPath: "",
 								Description:       "",
+								ConfigFalse:       true,
 							},
 							Type: ygen.LeafNode,
 							LangType: &ygen.MappedType{
@@ -525,6 +530,7 @@ func TestGenerateIR(t *testing.T) {
 								ShadowSchemaPath:  "/parent/child/config/three",
 								LeafrefTargetPath: "",
 								Description:       "",
+								ConfigFalse:       true,
 							},
 							Type: ygen.LeafNode,
 							LangType: &ygen.MappedType{
@@ -552,6 +558,7 @@ func TestGenerateIR(t *testing.T) {
 								ShadowSchemaPath:  "/parent/child/config/four",
 								LeafrefTargetPath: "",
 								Description:       "",
+								ConfigFalse:       true,
 							},
 							Type: ygen.LeafNode,
 							LangType: &ygen.MappedType{
@@ -589,6 +596,7 @@ func TestGenerateIR(t *testing.T) {
 								ShadowSchemaPath:  "/remote-container/config/a-leaf",
 								LeafrefTargetPath: "",
 								Description:       "",
+								ConfigFalse:       true,
 							},
 							Type: ygen.LeafNode,
 							LangType: &ygen.MappedType{
@@ -753,6 +761,7 @@ func TestGenerateIR(t *testing.T) {
 								SchemaPath:        "/parent/child/state",
 								LeafrefTargetPath: "",
 								Description:       "",
+								ConfigFalse:       true,
 							},
 							Type:              1,
 							MappedPaths:       [][]string{{"state"}},
@@ -872,6 +881,7 @@ func TestGenerateIR(t *testing.T) {
 								SchemaPath:        "/parent/child/state/four",
 								LeafrefTargetPath: "",
 								Description:       "",
+								ConfigFalse:       true,
 							},
 							Type: 3,
 							LangType: &ygen.MappedType{
@@ -898,6 +908,7 @@ func TestGenerateIR(t *testing.T) {
 								SchemaPath:        "/parent/child/state/one",
 								LeafrefTargetPath: "",
 								Description:       "",
+								ConfigFalse:       true,
 							},
 							Type: 3,
 							LangType: &ygen.MappedType{
@@ -924,6 +935,7 @@ func TestGenerateIR(t *testing.T) {
 								SchemaPath:        "/parent/child/state/three",
 								LeafrefTargetPath: "",
 								Description:       "",
+								ConfigFalse:       true,
 							},
 							Type: 3,
 							LangType: &ygen.MappedType{
@@ -950,6 +962,7 @@ func TestGenerateIR(t *testing.T) {
 								SchemaPath:        "/parent/child/state/two",
 								LeafrefTargetPath: "",
 								Description:       "",
+								ConfigFalse:       true,
 							},
 							Type: 3,
 							LangType: &ygen.MappedType{
@@ -976,6 +989,7 @@ func TestGenerateIR(t *testing.T) {
 								SchemaPath:        "/parent/child/state/zero",
 								LeafrefTargetPath: "",
 								Description:       "",
+								ConfigFalse:       true,
 							},
 							Type: 3,
 							LangType: &ygen.MappedType{
@@ -1030,6 +1044,7 @@ func TestGenerateIR(t *testing.T) {
 								SchemaPath:        "/remote-container/state",
 								LeafrefTargetPath: "",
 								Description:       "",
+								ConfigFalse:       true,
 							},
 							Type:              1,
 							MappedPaths:       [][]string{{"state"}},
@@ -1095,6 +1110,7 @@ func TestGenerateIR(t *testing.T) {
 								SchemaPath:        "/remote-container/state/a-leaf",
 								LeafrefTargetPath: "",
 								Description:       "",
+								ConfigFalse:       true,
 							},
 							Type: 3,
 							LangType: &ygen.MappedType{
@@ -1365,6 +1381,7 @@ func TestGenerateIR(t *testing.T) {
 								DefiningModule:    "openconfig-complex",
 								Path:              "/openconfig-complex/model/c/unkeyed-list",
 								SchemaPath:        "/model/c/unkeyed-list",
+								ConfigFalse:       true,
 							},
 							Type:              ygen.ListNode,
 							MappedPaths:       [][]string{{"c", "unkeyed-list"}},
@@ -1783,6 +1800,7 @@ func TestGenerateIR(t *testing.T) {
 								DefiningModule:    "openconfig-complex",
 								Path:              "/openconfig-complex/model/c/unkeyed-list/field",
 								SchemaPath:        "/model/c/unkeyed-list/field",
+								ConfigFalse:       true,
 							},
 							Type:              ygen.LeafNode,
 							LangType:          &ygen.MappedType{NativeType: "Binary", ZeroValue: "nil"},
diff --git a/protogen/genir_test.go b/protogen/genir_test.go
index afd04010..47f17f2d 100644
--- a/protogen/genir_test.go
+++ b/protogen/genir_test.go
@@ -201,6 +201,7 @@ func protoIR(nestedDirectories bool) *ygen.IR {
 							DefiningModule:    "openconfig-complex",
 							Path:              "/openconfig-complex/model/c/unkeyed-list",
 							SchemaPath:        "/model/c/unkeyed-list",
+							ConfigFalse:       true,
 						},
 						Type:              ygen.ListNode,
 						MappedPaths:       [][]string{{"", "model", "c", "unkeyed-list"}},
@@ -837,6 +838,7 @@ func protoIR(nestedDirectories bool) *ygen.IR {
 							DefiningModule:    "openconfig-complex",
 							Path:              "/openconfig-complex/model/c/unkeyed-list/field",
 							SchemaPath:        "/model/c/unkeyed-list/field",
+							ConfigFalse:       true,
 						},
 						Type:              ygen.LeafNode,
 						LangType:          &ygen.MappedType{NativeType: "ywrapper.BytesValue"},
@@ -1154,6 +1156,7 @@ func TestGenerateIR(t *testing.T) {
 								SchemaPath:        "/parent/child/state",
 								LeafrefTargetPath: "",
 								Description:       "",
+								ConfigFalse:       true,
 							},
 							Type:              1,
 							MappedPaths:       [][]string{{"state"}},
@@ -1273,6 +1276,7 @@ func TestGenerateIR(t *testing.T) {
 								SchemaPath:        "/parent/child/state/four",
 								LeafrefTargetPath: "",
 								Description:       "",
+								ConfigFalse:       true,
 							},
 							Type: 3,
 							LangType: &ygen.MappedType{
@@ -1299,6 +1303,7 @@ func TestGenerateIR(t *testing.T) {
 								SchemaPath:        "/parent/child/state/one",
 								LeafrefTargetPath: "",
 								Description:       "",
+								ConfigFalse:       true,
 							},
 							Type: 3,
 							LangType: &ygen.MappedType{
@@ -1325,6 +1330,7 @@ func TestGenerateIR(t *testing.T) {
 								SchemaPath:        "/parent/child/state/three",
 								LeafrefTargetPath: "",
 								Description:       "",
+								ConfigFalse:       true,
 							},
 							Type: 3,
 							LangType: &ygen.MappedType{
@@ -1352,6 +1358,7 @@ func TestGenerateIR(t *testing.T) {
 								SchemaPath:        "/parent/child/state/two",
 								LeafrefTargetPath: "",
 								Description:       "",
+								ConfigFalse:       true,
 							},
 							Type: 3,
 							LangType: &ygen.MappedType{
@@ -1378,6 +1385,7 @@ func TestGenerateIR(t *testing.T) {
 								SchemaPath:        "/parent/child/state/zero",
 								LeafrefTargetPath: "",
 								Description:       "",
+								ConfigFalse:       true,
 							},
 							Type: 3,
 							LangType: &ygen.MappedType{
@@ -1432,6 +1440,7 @@ func TestGenerateIR(t *testing.T) {
 								SchemaPath:        "/remote-container/state",
 								LeafrefTargetPath: "",
 								Description:       "",
+								ConfigFalse:       true,
 							},
 							Type:              1,
 							MappedPaths:       [][]string{{"state"}},
@@ -1498,6 +1507,7 @@ func TestGenerateIR(t *testing.T) {
 								SchemaPath:        "/remote-container/state/a-leaf",
 								LeafrefTargetPath: "",
 								Description:       "",
+								ConfigFalse:       true,
 							},
 							Type: 3,
 							LangType: &ygen.MappedType{
diff --git a/ygen/directory.go b/ygen/directory.go
index 17020a04..ca3231c4 100644
--- a/ygen/directory.go
+++ b/ygen/directory.go
@@ -263,6 +263,7 @@ func getOrderedDirDetails(langMapper LangMapper, directory map[string]*Directory
 					SchemaPath:        util.SchemaTreePathNoModule(field),
 					LeafrefTargetPath: target.Path(),
 					Description:       field.Description,
+					ConfigFalse:       !util.IsConfig(field),
 				},
 				MappedPaths:             mp,
 				MappedPathModules:       mm,
diff --git a/ygen/ir.go b/ygen/ir.go
index 1bfa5af7..81a521e2 100644
--- a/ygen/ir.go
+++ b/ygen/ir.go
@@ -699,6 +699,12 @@ type YANGNodeDetails struct {
 	// OrderedByUser indicates whether the node has the modifier
 	// "ordered-by user".
 	OrderedByUser bool
+	// ConfigFalse represents whether the node is state data as opposed to
+	// configuration data.
+	// The meaning of "config" is exactly the same as the "config"
+	// statement in YANG:
+	// https://datatracker.ietf.org/doc/html/rfc7950#section-7.21.1
+	ConfigFalse bool
 }
 
 // EnumeratedValueType is used to indicate the source YANG type