diff --git a/pkg/endpoints/installer.go b/pkg/endpoints/installer.go
index 3f8b6807e..f1adddba5 100644
--- a/pkg/endpoints/installer.go
+++ b/pkg/endpoints/installer.go
@@ -674,28 +674,23 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
 		reqScope.MetaGroupVersion = *a.group.MetaGroupVersion
 	}
 
-	// Use TypeConverter's nil-ness as a proxy for whether SSA/OpenAPI is enabled
-	// This should be removed in the future and made unconditional
-	// https://github.com/kubernetes/kubernetes/pull/114998
-	if a.group.TypeConverter != nil {
-		var resetFields map[fieldpath.APIVersion]*fieldpath.Set
-		if resetFieldsStrategy, isResetFieldsStrategy := storage.(rest.ResetFieldsStrategy); isResetFieldsStrategy {
-			resetFields = resetFieldsStrategy.GetResetFields()
-		}
+	var resetFields map[fieldpath.APIVersion]*fieldpath.Set
+	if resetFieldsStrategy, isResetFieldsStrategy := storage.(rest.ResetFieldsStrategy); isResetFieldsStrategy {
+		resetFields = resetFieldsStrategy.GetResetFields()
+	}
 
-		reqScope.FieldManager, err = managedfields.NewDefaultFieldManager(
-			a.group.TypeConverter,
-			a.group.UnsafeConvertor,
-			a.group.Defaulter,
-			a.group.Creater,
-			fqKindToRegister,
-			reqScope.HubGroupVersion,
-			subresource,
-			resetFields,
-		)
-		if err != nil {
-			return nil, nil, fmt.Errorf("failed to create field manager: %v", err)
-		}
+	reqScope.FieldManager, err = managedfields.NewDefaultFieldManager(
+		a.group.TypeConverter,
+		a.group.UnsafeConvertor,
+		a.group.Defaulter,
+		a.group.Creater,
+		fqKindToRegister,
+		reqScope.HubGroupVersion,
+		subresource,
+		resetFields,
+	)
+	if err != nil {
+		return nil, nil, fmt.Errorf("failed to create field manager: %v", err)
 	}
 
 	for _, action := range actions {
diff --git a/pkg/server/genericapiserver.go b/pkg/server/genericapiserver.go
index 52c865f8a..74501c250 100644
--- a/pkg/server/genericapiserver.go
+++ b/pkg/server/genericapiserver.go
@@ -18,6 +18,7 @@ package server
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"net/http"
 	gpath "path"
@@ -736,16 +737,7 @@ func (s preparedGenericAPIServer) NonBlockingRun(stopCh <-chan struct{}, shutdow
 }
 
 // installAPIResources is a private method for installing the REST storage backing each api groupversionresource
-func (s *GenericAPIServer) installAPIResources(apiPrefix string, apiGroupInfo *APIGroupInfo, openAPIModels map[string]*spec.Schema) error {
-	var typeConverter managedfields.TypeConverter
-
-	if len(openAPIModels) > 0 {
-		var err error
-		typeConverter, err = managedfields.NewTypeConverter(openAPIModels, false)
-		if err != nil {
-			return err
-		}
-	}
+func (s *GenericAPIServer) installAPIResources(apiPrefix string, apiGroupInfo *APIGroupInfo, typeConverter managedfields.TypeConverter) error {
 	var resourceInfos []*storageversion.ResourceInfo
 	for _, groupVersion := range apiGroupInfo.PrioritizedVersions {
 		if len(apiGroupInfo.VersionedResourcesStorageMap[groupVersion.Version]) == 0 {
@@ -953,13 +945,13 @@ func NewDefaultAPIGroupInfo(group string, scheme *runtime.Scheme, parameterCodec
 }
 
 // getOpenAPIModels is a private method for getting the OpenAPI models
-func (s *GenericAPIServer) getOpenAPIModels(apiPrefix string, apiGroupInfos ...*APIGroupInfo) (map[string]*spec.Schema, error) {
+func (s *GenericAPIServer) getOpenAPIModels(apiPrefix string, apiGroupInfos ...*APIGroupInfo) (managedfields.TypeConverter, error) {
 	if s.openAPIV3Config == nil {
-		//!TODO: A future work should add a requirement that
-		// OpenAPIV3 config is required. May require some refactoring of tests.
-		return nil, nil
+		// SSA is GA and requires OpenAPI config to be set
+		// to create models.
+		return nil, errors.New("OpenAPIV3 config must not be nil")
 	}
-	pathsToIgnore := openapiutil.NewTrie(s.openAPIConfig.IgnorePrefixes)
+	pathsToIgnore := openapiutil.NewTrie(s.openAPIV3Config.IgnorePrefixes)
 	resourceNames := make([]string, 0)
 	for _, apiGroupInfo := range apiGroupInfos {
 		groupResources, err := getResourceNamesForGroup(apiPrefix, apiGroupInfo, pathsToIgnore)
@@ -977,7 +969,13 @@ func (s *GenericAPIServer) getOpenAPIModels(apiPrefix string, apiGroupInfos ...*
 	for _, apiGroupInfo := range apiGroupInfos {
 		apiGroupInfo.StaticOpenAPISpec = openAPISpec
 	}
-	return openAPISpec, nil
+
+	typeConverter, err := managedfields.NewTypeConverter(openAPISpec, false)
+	if err != nil {
+		return nil, err
+	}
+
+	return typeConverter, nil
 }
 
 // getResourceNamesForGroup is a private method for getting the canonical names for each resource to build in an api group