42 files declare their use of AccessInterface in Drupal 9

AccessCheck.php in core/modules/system/tests/modules/menu_test/src/Access/AccessCheck.php

AccessCheckInterface.php in core/lib/Drupal/Core/Access/AccessCheckInterface.php

ActiveWorkspaceCheck.php in core/modules/workspaces/src/Access/ActiveWorkspaceCheck.php

BlockHasOverridesAccessCheck.php in core/modules/settings_tray/src/Access/BlockHasOverridesAccessCheck.php

BlockPluginHasSettingsTrayFormAccessCheck.php in core/modules/settings_tray/src/Access/BlockPluginHasSettingsTrayFormAccessCheck.php

BookNodeIsRemovableAccessCheck.php in core/modules/book/src/Access/BookNodeIsRemovableAccessCheck.php

CheckProvider.php in core/lib/Drupal/Core/Access/CheckProvider.php

ConfigTranslationOverviewAccess.php in core/modules/config_translation/src/Access/ConfigTranslationOverviewAccess.php

ContactPageAccess.php in core/modules/contact/src/Access/ContactPageAccess.php

ContentTranslationDeleteAccess.php in core/modules/content_translation/src/Access/ContentTranslationDeleteAccess.php

ContentTranslationManageAccessCheck.php in core/modules/content_translation/src/Access/ContentTranslationManageAccessCheck.php

ContentTranslationOverviewAccess.php in core/modules/content_translation/src/Access/ContentTranslationOverviewAccess.php

CronAccessCheck.php in core/modules/system/src/Access/CronAccessCheck.php

CsrfAccessCheck.php in core/lib/Drupal/Core/Access/CsrfAccessCheck.php

CustomAccessCheck.php in core/lib/Drupal/Core/Access/CustomAccessCheck.php

DbUpdateAccessCheck.php in core/modules/system/src/Access/DbUpdateAccessCheck.php

DefaultAccessCheck.php in core/lib/Drupal/Core/Access/DefaultAccessCheck.php

DefinedTestAccessCheck.php in core/modules/system/tests/modules/router_test_directory/src/Access/DefinedTestAccessCheck.php

EntityAccessCheck.php in core/lib/Drupal/Core/Entity/EntityAccessCheck.php

EntityBundleAccessCheck.php in core/lib/Drupal/Core/Entity/EntityBundleAccessCheck.php

EntityCreateAccessCheck.php in core/lib/Drupal/Core/Entity/EntityCreateAccessCheck.php

EntityCreateAnyAccessCheck.php in core/lib/Drupal/Core/Entity/EntityCreateAnyAccessCheck.php

EntityDeleteMultipleAccessCheck.php in core/lib/Drupal/Core/Entity/EntityDeleteMultipleAccessCheck.php

FormModeAccessCheck.php in core/modules/field_ui/src/Access/FormModeAccessCheck.php

LatestRevisionCheck.php in core/modules/content_moderation/src/Access/LatestRevisionCheck.php

LayoutBuilderAccessCheck.php in core/modules/layout_builder/src/Access/LayoutBuilderAccessCheck.php

LoginStatusCheck.php in core/modules/user/src/Access/LoginStatusCheck.php

MediaRevisionAccessCheck.php in core/modules/media/src/Access/MediaRevisionAccessCheck.php

NodeAddAccessCheck.php in core/modules/node/src/Access/NodeAddAccessCheck.php

NodePreviewAccessCheck.php in core/modules/node/src/Access/NodePreviewAccessCheck.php

NodeRevisionAccessCheck.php in core/modules/node/src/Access/NodeRevisionAccessCheck.php

PermissionAccessCheck.php in core/modules/user/src/Access/PermissionAccessCheck.php

QuickEditEntityFieldAccessCheck.php in core/modules/quickedit/src/Access/QuickEditEntityFieldAccessCheck.php

RegisterAccessCheck.php in core/modules/user/src/Access/RegisterAccessCheck.php

RelationshipFieldAccess.php in core/modules/jsonapi/src/Access/RelationshipFieldAccess.php

RelationshipRouteAccessCheck.php in core/modules/jsonapi/src/Access/RelationshipRouteAccessCheck.php

RoleAccessCheck.php in core/modules/user/src/Access/RoleAccessCheck.php

TestAccessCheck.php in core/modules/system/tests/modules/router_test_directory/src/Access/TestAccessCheck.php

ThemeAccessCheck.php in core/lib/Drupal/Core/Theme/ThemeAccessCheck.php

UpdateManagerAccessCheck.php in core/modules/update/src/Access/UpdateManagerAccessCheck.php

ViewModeAccessCheck.php in core/modules/field_ui/src/Access/ViewModeAccessCheck.php

WorkflowStateTransitionOperationsAccessCheck.php in core/modules/workflows/src/WorkflowStateTransitionOperationsAccessCheck.php