diff --git a/beacon-chain/state/BUILD.bazel b/beacon-chain/state/BUILD.bazel
index e7b711b15..e303a754a 100644
--- a/beacon-chain/state/BUILD.bazel
+++ b/beacon-chain/state/BUILD.bazel
@@ -4,6 +4,7 @@ go_library(
     name = "go_default_library",
     srcs = [
         "altair.go",
+        "error.go",
         "phase0.go",
         "prometheus.go",
     ],
diff --git a/beacon-chain/state/error.go b/beacon-chain/state/error.go
new file mode 100644
index 000000000..29dd69b38
--- /dev/null
+++ b/beacon-chain/state/error.go
@@ -0,0 +1,9 @@
+package state
+
+import "errors"
+
+var (
+	// ErrNilValidatorsInState returns when accessing validators in the state while the state has a
+	// nil slice for the validators field.
+	ErrNilValidatorsInState = errors.New("state has nil validator slice")
+)
diff --git a/beacon-chain/state/state-native/v1/getters_validator.go b/beacon-chain/state/state-native/v1/getters_validator.go
index 604e11219..746bd2030 100644
--- a/beacon-chain/state/state-native/v1/getters_validator.go
+++ b/beacon-chain/state/state-native/v1/getters_validator.go
@@ -17,12 +17,6 @@ type ValidatorIndexOutOfRangeError struct {
 	message string
 }
 
-var (
-	// ErrNilValidatorsInState returns when accessing validators in the state while the state has a
-	// nil slice for the validators field.
-	ErrNilValidatorsInState = errors.New("state has nil validator slice")
-)
-
 // NewValidatorIndexOutOfRangeError creates a new error instance.
 func NewValidatorIndexOutOfRangeError(index types.ValidatorIndex) ValidatorIndexOutOfRangeError {
 	return ValidatorIndexOutOfRangeError{
@@ -121,7 +115,7 @@ func (b *BeaconState) ValidatorAtIndexReadOnly(idx types.ValidatorIndex) (state.
 		return nil, ErrNilInnerState
 	}
 	if b.state.Validators == nil {
-		return nil, ErrNilValidatorsInState
+		return nil, state.ErrNilValidatorsInState
 	}
 	if uint64(len(b.state.Validators)) <= uint64(idx) {
 		e := NewValidatorIndexOutOfRangeError(idx)
diff --git a/beacon-chain/state/state-native/v1/getters_validator_test.go b/beacon-chain/state/state-native/v1/getters_validator_test.go
index 6e97f7874..88cb0614e 100644
--- a/beacon-chain/state/state-native/v1/getters_validator_test.go
+++ b/beacon-chain/state/state-native/v1/getters_validator_test.go
@@ -3,6 +3,7 @@ package v1_test
 import (
 	"testing"
 
+	"github.com/prysmaticlabs/prysm/beacon-chain/state"
 	v1 "github.com/prysmaticlabs/prysm/beacon-chain/state/state-native/v1"
 	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/testing/assert"
@@ -16,5 +17,5 @@ func TestBeaconState_ValidatorAtIndexReadOnly_HandlesNilSlice(t *testing.T) {
 	require.NoError(t, err)
 
 	_, err = st.ValidatorAtIndexReadOnly(0)
-	assert.Equal(t, v1.ErrNilValidatorsInState, err)
+	assert.Equal(t, state.ErrNilValidatorsInState, err)
 }
diff --git a/beacon-chain/state/state-native/v2/BUILD.bazel b/beacon-chain/state/state-native/v2/BUILD.bazel
index 7b3d1a681..fb8cb70fb 100644
--- a/beacon-chain/state/state-native/v2/BUILD.bazel
+++ b/beacon-chain/state/state-native/v2/BUILD.bazel
@@ -72,6 +72,7 @@ go_test(
     ],
     embed = [":go_default_library"],
     deps = [
+        "//beacon-chain/state:go_default_library",
         "//beacon-chain/state/state-native/v1:go_default_library",
         "//beacon-chain/state/stateutil:go_default_library",
         "//beacon-chain/state/types:go_default_library",
diff --git a/beacon-chain/state/state-native/v2/getters_validator.go b/beacon-chain/state/state-native/v2/getters_validator.go
index 3137a0b9b..7e993f81a 100644
--- a/beacon-chain/state/state-native/v2/getters_validator.go
+++ b/beacon-chain/state/state-native/v2/getters_validator.go
@@ -18,12 +18,6 @@ type ValidatorIndexOutOfRangeError struct {
 	message string
 }
 
-var (
-	// ErrNilValidatorsInState returns when accessing validators in the state while the state has a
-	// nil slice for the validators field.
-	ErrNilValidatorsInState = errors.New("state has nil validator slice")
-)
-
 // NewValidatorIndexOutOfRangeError creates a new error instance.
 func NewValidatorIndexOutOfRangeError(index types.ValidatorIndex) ValidatorIndexOutOfRangeError {
 	return ValidatorIndexOutOfRangeError{
@@ -122,7 +116,7 @@ func (b *BeaconState) ValidatorAtIndexReadOnly(idx types.ValidatorIndex) (state.
 		return nil, ErrNilInnerState
 	}
 	if b.state.Validators == nil {
-		return nil, ErrNilValidatorsInState
+		return nil, state.ErrNilValidatorsInState
 	}
 	if uint64(len(b.state.Validators)) <= uint64(idx) {
 		e := NewValidatorIndexOutOfRangeError(idx)
diff --git a/beacon-chain/state/state-native/v2/getters_validator_test.go b/beacon-chain/state/state-native/v2/getters_validator_test.go
index 4dfe0095f..a8b85530b 100644
--- a/beacon-chain/state/state-native/v2/getters_validator_test.go
+++ b/beacon-chain/state/state-native/v2/getters_validator_test.go
@@ -3,6 +3,7 @@ package v2_test
 import (
 	"testing"
 
+	"github.com/prysmaticlabs/prysm/beacon-chain/state"
 	v1 "github.com/prysmaticlabs/prysm/beacon-chain/state/state-native/v1"
 	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/testing/assert"
@@ -16,5 +17,5 @@ func TestBeaconState_ValidatorAtIndexReadOnly_HandlesNilSlice(t *testing.T) {
 	require.NoError(t, err)
 
 	_, err = st.ValidatorAtIndexReadOnly(0)
-	assert.Equal(t, v1.ErrNilValidatorsInState, err)
+	assert.Equal(t, state.ErrNilValidatorsInState, err)
 }
diff --git a/beacon-chain/state/state-native/v3/BUILD.bazel b/beacon-chain/state/state-native/v3/BUILD.bazel
index 2a7efe182..1c8b01565 100644
--- a/beacon-chain/state/state-native/v3/BUILD.bazel
+++ b/beacon-chain/state/state-native/v3/BUILD.bazel
@@ -73,6 +73,7 @@ go_test(
     ],
     embed = [":go_default_library"],
     deps = [
+        "//beacon-chain/state:go_default_library",
         "//beacon-chain/state/state-native/v1:go_default_library",
         "//beacon-chain/state/stateutil:go_default_library",
         "//beacon-chain/state/types:go_default_library",
diff --git a/beacon-chain/state/state-native/v3/getters_validator.go b/beacon-chain/state/state-native/v3/getters_validator.go
index 9a5c4d5fe..11c9d810f 100644
--- a/beacon-chain/state/state-native/v3/getters_validator.go
+++ b/beacon-chain/state/state-native/v3/getters_validator.go
@@ -18,12 +18,6 @@ type ValidatorIndexOutOfRangeError struct {
 	message string
 }
 
-var (
-	// ErrNilValidatorsInState returns when accessing validators in the state while the state has a
-	// nil slice for the validators field.
-	ErrNilValidatorsInState = errors.New("state has nil validator slice")
-)
-
 // NewValidatorIndexOutOfRangeError creates a new error instance.
 func NewValidatorIndexOutOfRangeError(index types.ValidatorIndex) ValidatorIndexOutOfRangeError {
 	return ValidatorIndexOutOfRangeError{
@@ -122,7 +116,7 @@ func (b *BeaconState) ValidatorAtIndexReadOnly(idx types.ValidatorIndex) (state.
 		return nil, ErrNilInnerState
 	}
 	if b.state.Validators == nil {
-		return nil, ErrNilValidatorsInState
+		return nil, state.ErrNilValidatorsInState
 	}
 	if uint64(len(b.state.Validators)) <= uint64(idx) {
 		e := NewValidatorIndexOutOfRangeError(idx)
diff --git a/beacon-chain/state/state-native/v3/getters_validator_test.go b/beacon-chain/state/state-native/v3/getters_validator_test.go
index a8851815d..258433afb 100644
--- a/beacon-chain/state/state-native/v3/getters_validator_test.go
+++ b/beacon-chain/state/state-native/v3/getters_validator_test.go
@@ -3,6 +3,7 @@ package v3_test
 import (
 	"testing"
 
+	"github.com/prysmaticlabs/prysm/beacon-chain/state"
 	v1 "github.com/prysmaticlabs/prysm/beacon-chain/state/state-native/v1"
 	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/testing/assert"
@@ -16,5 +17,5 @@ func TestBeaconState_ValidatorAtIndexReadOnly_HandlesNilSlice(t *testing.T) {
 	require.NoError(t, err)
 
 	_, err = st.ValidatorAtIndexReadOnly(0)
-	assert.Equal(t, v1.ErrNilValidatorsInState, err)
+	assert.Equal(t, state.ErrNilValidatorsInState, err)
 }
diff --git a/beacon-chain/state/v1/getters_validator.go b/beacon-chain/state/v1/getters_validator.go
index 604e11219..746bd2030 100644
--- a/beacon-chain/state/v1/getters_validator.go
+++ b/beacon-chain/state/v1/getters_validator.go
@@ -17,12 +17,6 @@ type ValidatorIndexOutOfRangeError struct {
 	message string
 }
 
-var (
-	// ErrNilValidatorsInState returns when accessing validators in the state while the state has a
-	// nil slice for the validators field.
-	ErrNilValidatorsInState = errors.New("state has nil validator slice")
-)
-
 // NewValidatorIndexOutOfRangeError creates a new error instance.
 func NewValidatorIndexOutOfRangeError(index types.ValidatorIndex) ValidatorIndexOutOfRangeError {
 	return ValidatorIndexOutOfRangeError{
@@ -121,7 +115,7 @@ func (b *BeaconState) ValidatorAtIndexReadOnly(idx types.ValidatorIndex) (state.
 		return nil, ErrNilInnerState
 	}
 	if b.state.Validators == nil {
-		return nil, ErrNilValidatorsInState
+		return nil, state.ErrNilValidatorsInState
 	}
 	if uint64(len(b.state.Validators)) <= uint64(idx) {
 		e := NewValidatorIndexOutOfRangeError(idx)
diff --git a/beacon-chain/state/v1/getters_validator_test.go b/beacon-chain/state/v1/getters_validator_test.go
index cb2834976..7e181c58d 100644
--- a/beacon-chain/state/v1/getters_validator_test.go
+++ b/beacon-chain/state/v1/getters_validator_test.go
@@ -3,6 +3,7 @@ package v1_test
 import (
 	"testing"
 
+	"github.com/prysmaticlabs/prysm/beacon-chain/state"
 	v1 "github.com/prysmaticlabs/prysm/beacon-chain/state/v1"
 	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/testing/assert"
@@ -16,5 +17,5 @@ func TestBeaconState_ValidatorAtIndexReadOnly_HandlesNilSlice(t *testing.T) {
 	require.NoError(t, err)
 
 	_, err = st.ValidatorAtIndexReadOnly(0)
-	assert.Equal(t, v1.ErrNilValidatorsInState, err)
+	assert.Equal(t, state.ErrNilValidatorsInState, err)
 }
diff --git a/beacon-chain/state/v2/BUILD.bazel b/beacon-chain/state/v2/BUILD.bazel
index f047c0139..77939a1ef 100644
--- a/beacon-chain/state/v2/BUILD.bazel
+++ b/beacon-chain/state/v2/BUILD.bazel
@@ -72,6 +72,7 @@ go_test(
     ],
     embed = [":go_default_library"],
     deps = [
+        "//beacon-chain/state:go_default_library",
         "//beacon-chain/state/stateutil:go_default_library",
         "//beacon-chain/state/types:go_default_library",
         "//beacon-chain/state/v1:go_default_library",
diff --git a/beacon-chain/state/v2/getters_validator.go b/beacon-chain/state/v2/getters_validator.go
index db49e3dcc..31255a33c 100644
--- a/beacon-chain/state/v2/getters_validator.go
+++ b/beacon-chain/state/v2/getters_validator.go
@@ -18,12 +18,6 @@ type ValidatorIndexOutOfRangeError struct {
 	message string
 }
 
-var (
-	// ErrNilValidatorsInState returns when accessing validators in the state while the state has a
-	// nil slice for the validators field.
-	ErrNilValidatorsInState = errors.New("state has nil validator slice")
-)
-
 // NewValidatorIndexOutOfRangeError creates a new error instance.
 func NewValidatorIndexOutOfRangeError(index types.ValidatorIndex) ValidatorIndexOutOfRangeError {
 	return ValidatorIndexOutOfRangeError{
@@ -122,7 +116,7 @@ func (b *BeaconState) ValidatorAtIndexReadOnly(idx types.ValidatorIndex) (state.
 		return nil, ErrNilInnerState
 	}
 	if b.state.Validators == nil {
-		return nil, ErrNilValidatorsInState
+		return nil, state.ErrNilValidatorsInState
 	}
 	if uint64(len(b.state.Validators)) <= uint64(idx) {
 		e := NewValidatorIndexOutOfRangeError(idx)
diff --git a/beacon-chain/state/v2/getters_validator_test.go b/beacon-chain/state/v2/getters_validator_test.go
index 454a1bbf6..8703979ee 100644
--- a/beacon-chain/state/v2/getters_validator_test.go
+++ b/beacon-chain/state/v2/getters_validator_test.go
@@ -3,6 +3,7 @@ package v2_test
 import (
 	"testing"
 
+	"github.com/prysmaticlabs/prysm/beacon-chain/state"
 	v1 "github.com/prysmaticlabs/prysm/beacon-chain/state/v1"
 	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/testing/assert"
@@ -16,5 +17,5 @@ func TestBeaconState_ValidatorAtIndexReadOnly_HandlesNilSlice(t *testing.T) {
 	require.NoError(t, err)
 
 	_, err = st.ValidatorAtIndexReadOnly(0)
-	assert.Equal(t, v1.ErrNilValidatorsInState, err)
+	assert.Equal(t, state.ErrNilValidatorsInState, err)
 }
diff --git a/beacon-chain/state/v3/BUILD.bazel b/beacon-chain/state/v3/BUILD.bazel
index a45dd34b4..6fe4324f0 100644
--- a/beacon-chain/state/v3/BUILD.bazel
+++ b/beacon-chain/state/v3/BUILD.bazel
@@ -73,6 +73,7 @@ go_test(
     ],
     embed = [":go_default_library"],
     deps = [
+        "//beacon-chain/state:go_default_library",
         "//beacon-chain/state/stateutil:go_default_library",
         "//beacon-chain/state/types:go_default_library",
         "//beacon-chain/state/v1:go_default_library",
diff --git a/beacon-chain/state/v3/getters_validator.go b/beacon-chain/state/v3/getters_validator.go
index a4689d00e..c8b9d8a61 100644
--- a/beacon-chain/state/v3/getters_validator.go
+++ b/beacon-chain/state/v3/getters_validator.go
@@ -18,12 +18,6 @@ type ValidatorIndexOutOfRangeError struct {
 	message string
 }
 
-var (
-	// ErrNilValidatorsInState returns when accessing validators in the state while the state has a
-	// nil slice for the validators field.
-	ErrNilValidatorsInState = errors.New("state has nil validator slice")
-)
-
 // NewValidatorIndexOutOfRangeError creates a new error instance.
 func NewValidatorIndexOutOfRangeError(index types.ValidatorIndex) ValidatorIndexOutOfRangeError {
 	return ValidatorIndexOutOfRangeError{
@@ -122,7 +116,7 @@ func (b *BeaconState) ValidatorAtIndexReadOnly(idx types.ValidatorIndex) (state.
 		return nil, ErrNilInnerState
 	}
 	if b.state.Validators == nil {
-		return nil, ErrNilValidatorsInState
+		return nil, state.ErrNilValidatorsInState
 	}
 	if uint64(len(b.state.Validators)) <= uint64(idx) {
 		e := NewValidatorIndexOutOfRangeError(idx)
diff --git a/beacon-chain/state/v3/getters_validator_test.go b/beacon-chain/state/v3/getters_validator_test.go
index 019f6dc8b..0306e23ba 100644
--- a/beacon-chain/state/v3/getters_validator_test.go
+++ b/beacon-chain/state/v3/getters_validator_test.go
@@ -3,6 +3,7 @@ package v3_test
 import (
 	"testing"
 
+	"github.com/prysmaticlabs/prysm/beacon-chain/state"
 	v1 "github.com/prysmaticlabs/prysm/beacon-chain/state/v1"
 	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/testing/assert"
@@ -16,5 +17,5 @@ func TestBeaconState_ValidatorAtIndexReadOnly_HandlesNilSlice(t *testing.T) {
 	require.NoError(t, err)
 
 	_, err = st.ValidatorAtIndexReadOnly(0)
-	assert.Equal(t, v1.ErrNilValidatorsInState, err)
+	assert.Equal(t, state.ErrNilValidatorsInState, err)
 }