diff --git a/acl/extended.go b/acl/extended.go
index 61ccbcf..df8402a 100644
--- a/acl/extended.go
+++ b/acl/extended.go
@@ -1,11 +1,5 @@
 package acl
 
-import (
-	"context"
-
-	"github.com/nspcc-dev/neofs-api-go/refs"
-)
-
 // OperationType is an enumeration of operation types for extended ACL.
 type OperationType uint32
 
@@ -35,13 +29,6 @@ type TypedHeader interface {
 	HeaderType() HeaderType
 }
 
-// TypedHeaderSource is a various types of header set interface.
-type TypedHeaderSource interface {
-	// Must return list of Header of particular type.
-	// Must return false if there is no ability to compose header list.
-	HeadersOfType(HeaderType) ([]Header, bool)
-}
-
 // HeaderFilter is an interface of grouped information about filtered header.
 type HeaderFilter interface {
 	// Must return match type of filter.
@@ -80,20 +67,6 @@ type ExtendedACLTable interface {
 	Records() []ExtendedACLRecord
 }
 
-// ExtendedACLSource is an interface of storage of extended ACL tables with read access.
-type ExtendedACLSource interface {
-	// Must return extended ACL table by container ID key.
-	GetExtendedACLTable(context.Context, refs.CID) (ExtendedACLTable, error)
-}
-
-// ExtendedACLStore is an interface of storage of extended ACL tables.
-type ExtendedACLStore interface {
-	ExtendedACLSource
-
-	// Must store extended ACL table for container ID key.
-	PutExtendedACLTable(context.Context, refs.CID, ExtendedACLTable) error
-}
-
 const (
 	_ OperationType = iota
 
diff --git a/acl/types.go b/acl/types.go
index 6a418bc..c9bbfd3 100644
--- a/acl/types.go
+++ b/acl/types.go
@@ -1,10 +1,5 @@
 package acl
 
-import (
-	"github.com/nspcc-dev/neofs-api-go/object"
-	"github.com/nspcc-dev/neofs-api-go/service"
-)
-
 const (
 	_ MatchType = iota
 	stringEqual
@@ -75,47 +70,6 @@ const (
 	HdrObjSysLinkSG = "LINK_SG"
 )
 
-type objectHeaderSource struct {
-	obj *object.Object
-}
-
-type typedHeader struct {
-	n string
-	v string
-	t HeaderType
-}
-
-type extendedHeadersWrapper struct {
-	hdrSrc service.ExtendedHeadersSource
-}
-
-type typedExtendedHeader struct {
-	hdr service.ExtendedHeader
-}
-
-func newTypedHeader(name, value string, typ HeaderType) TypedHeader {
-	return &typedHeader{
-		n: name,
-		v: value,
-		t: typ,
-	}
-}
-
-// Name is a name field getter.
-func (s typedHeader) Name() string {
-	return s.n
-}
-
-// Value is a value field getter.
-func (s typedHeader) Value() string {
-	return s.v
-}
-
-// HeaderType is a type field getter.
-func (s typedHeader) HeaderType() HeaderType {
-	return s.t
-}
-
 // SetMatchType is MatchType field setter.
 func (m *EACLRecord_FilterInfo) SetMatchType(v EACLRecord_FilterInfo_MatchType) {
 	m.MatchType = v