diff --git a/package.json b/package.json
index 01b5bf2f4..3567ea388 100644
--- a/package.json
+++ b/package.json
@@ -50,8 +50,7 @@
     "@ecl/twig-component-pagination": "3.3.1",
     "@ecl/twig-component-radio": "3.3.1",
     "@ecl/twig-component-search-form": "3.3.1",
-    "@ecl/twig-component-site-header-core": "3.3.1",
-    "@ecl/twig-component-site-header-standardised": "3.3.1",
+    "@ecl/twig-component-site-header": "3.3.1",
     "@ecl/twig-component-skip-link": "3.3.1",
     "@ecl/twig-component-social-media-follow": "3.3.1",
     "@ecl/twig-component-social-media-share": "3.3.1",
diff --git a/templates/blocks/block--oe-search.html.twig b/templates/blocks/block--oe-search.html.twig
index fcc46a9d3..202811ef9 100644
--- a/templates/blocks/block--oe-search.html.twig
+++ b/templates/blocks/block--oe-search.html.twig
@@ -6,9 +6,9 @@
  * @see ./core/themes/stable/templates/block/block.html.twig
  */
 #}
-<div class="ecl-site-header-{{ ecl_branding }}__search-container">
+<div class="ecl-site-header__search-container">
   <a
-    class="ecl-button ecl-button--ghost ecl-site-header-{{ ecl_branding }}__search-toggle"
+    class="ecl-button ecl-button--ghost ecl-site-header__search-toggle"
     href=""
     data-ecl-search-toggle="true"
     aria-controls="{{ content['#id'] }}"
diff --git a/templates/blocks/block--system-branding-block.html.twig b/templates/blocks/block--system-branding-block.html.twig
index e33d4941e..9e37d79b2 100644
--- a/templates/blocks/block--system-branding-block.html.twig
+++ b/templates/blocks/block--system-branding-block.html.twig
@@ -8,7 +8,7 @@
 #}
 {% block content %}
   <a
-    class="ecl-link ecl-link--standalone ecl-site-header-{{ ecl_branding }}__logo-link"
+    class="ecl-link ecl-link--standalone ecl-site-header__logo-link"
     href="{{ site_logo_href }}"
     aria-label="{{ logo_aria_label }}"
   >
@@ -16,20 +16,20 @@
       <img
         alt="{{ site_logo_alt }}"
         title="{{ site_logo_title }}"
-        class="ecl-site-header-{{ ecl_branding }}__logo-image-mobile"
+        class="ecl-site-header__logo-image-mobile"
         src="{{ ecl_logo_path ~ '/condensed-version/positive/logo-eu--' ~ current_language_id|to_internal_language_id ~ '.svg'}}"
       />
       <img
         alt="{{ site_logo_alt }}"
         title="{{ site_logo_title }}"
-        class="ecl-site-header-{{ ecl_branding }}__logo-image ecl-site-header-{{ ecl_branding }}__logo-image-desktop"
+        class="ecl-site-header__logo-image ecl-site-header__logo-image-desktop"
         src="{{ ecl_logo_path ~ '/standard-version/positive/logo-eu--' ~ current_language_id|to_internal_language_id ~ '.svg'}}"
       />
     {% else %}
       <img
         alt="{{ site_logo_alt }}"
         title="{{ site_logo_title }}"
-        class="ecl-site-header-{{ ecl_branding }}__logo-image ecl-site-header-{{ ecl_branding }}__logo-image-desktop"
+        class="ecl-site-header__logo-image ecl-site-header__logo-image-desktop"
         src="{{ ecl_logo_path ~ '/positive/logo-ec--' ~ current_language_id|to_internal_language_id ~ '.svg'}}"
       />
     {% endif %}
diff --git a/templates/compositions/ec-component-language-list/language-list-selector.html.twig b/templates/compositions/ec-component-language-list/language-list-selector.html.twig
index 773cafa57..1f4095b75 100644
--- a/templates/compositions/ec-component-language-list/language-list-selector.html.twig
+++ b/templates/compositions/ec-component-language-list/language-list-selector.html.twig
@@ -29,8 +29,7 @@
           "value" (string) (default: '')
         },
         ...
-      ]
-    - "ecl_branding" (string) (default: 'core'): "core" or "standardised" template.
+      ].
 #}
 
 {# Internal properties #}
@@ -39,7 +38,6 @@
 {% set _code = code|default('') %}
 {% set _path = path|default('') %}
 {% set _icon_path = icon_path|default('') %}
-{% set _ecl_branding = ecl_branding|default('core') %}
 
 {% set _css_class = 'ecl-site-header__selector' %}
 {% set _extra_attributes = [] %}
@@ -66,22 +64,22 @@
 {% endif %}
 
 <a
-  class="ecl-button ecl-button--ghost  ecl-site-header-{{ _ecl_branding }}__language-selector"
+  class="ecl-button ecl-button--ghost  ecl-site-header__language-selector"
   href="{{ _path }}"
   data-ecl-language-selector
   aria-controls="language-list-overlay"
   aria-expanded="false"
 >
-  <span class="ecl-site-header-{{ _ecl_branding }}__language-icon">
+  <span class="ecl-site-header__language-icon">
     {% include '@ecl-twig/icon' with {
       icon: {
         path: _icon_path,
         name: 'language',
         size: 's'
       },
-      extra_classes: 'ecl-site-header-' ~ _ecl_branding ~ '__icon'
+      extra_classes: 'ecl-site-header__icon'
     } only %}
-    <span class="ecl-site-header-{{ _ecl_branding }}__language-code">{{ _code }}</span>
+    <span class="ecl-site-header__language-code">{{ _code }}</span>
   </span>
   {{- _label -}}
  </a>
diff --git a/templates/form/form--oe-search-search-form.html.twig b/templates/form/form--oe-search-search-form.html.twig
index f06394088..6e9149d20 100644
--- a/templates/form/form--oe-search-search-form.html.twig
+++ b/templates/form/form--oe-search-search-form.html.twig
@@ -30,7 +30,7 @@
   extra_classes: 'ecl-search-form__button'
 } %}
 {% set extra_attributes = attributes|to_ecl_attributes|merge([{'name': 'data-ecl-search-form'}]) %}
-{% set extra_classes = 'ecl-site-header-' ~ ecl_branding ~ '__search' %}
+{% set extra_classes = 'ecl-site-header__search' %}
 {% extends '@ecl-twig/search-form' %}
 {% block extra_form_elements %}
   {{ element.form_build_id }}
diff --git a/templates/layout/page--ecl-branding--standardised.html.twig b/templates/layout/page--ecl-branding--standardised.html.twig
index b532479a6..744a27719 100644
--- a/templates/layout/page--ecl-branding--standardised.html.twig
+++ b/templates/layout/page--ecl-branding--standardised.html.twig
@@ -11,16 +11,16 @@
 {% extends "page.html.twig" %}
 
 {% block site_header_container %}
-  <div class="ecl-site-header-standardised__header">
+  <div class="ecl-site-header__header">
     {{ parent() }}
   </div>
 {% endblock %}
 
 {% block navigation %}
-  <div class="ecl-site-header-standardised__banner">
+  <div class="ecl-site-header__banner">
     <div class="ecl-container">
       {% if site_name is not empty %}
-        <div class="ecl-site-header-standardised__site-name">{{ site_name }}</div>
+        <div class="ecl-site-header__site-name">{{ site_name }}</div>
       {% endif %}
       {% if cta_link is not empty %}
         {% include '@ecl-twig/link' with {
@@ -31,7 +31,7 @@
             icon_position: 'after'
           },
           icon: get_link_icon(cta_link.path),
-          extra_classes: 'ecl-standardised__cta',
+          extra_classes: 'ecl-site-header__cta',
         } only %}
       {% endif %}
     </div>
diff --git a/templates/layout/page.html.twig b/templates/layout/page.html.twig
index 1cc372ab5..94e7c4c37 100644
--- a/templates/layout/page.html.twig
+++ b/templates/layout/page.html.twig
@@ -9,16 +9,16 @@
 {% block site_header %}
   {% set has_menu = page.navigation|render|striptags|trim is not empty %}
 <header
-  class="ecl-site-header-{{ ecl_branding }}"
-  data-ecl-auto-init="SiteHeader{{ ecl_branding|capitalize }}"
+  class="ecl-site-header"
+  data-ecl-auto-init="SiteHeader"
   {% if has_menu %}data-ecl-has-menu{% endif %}
 >
   {{ page.site_top_bar }}
   {% block site_header_container %}
-    <div class="ecl-site-header-{{ ecl_branding }}__container ecl-container">
-      <div class="ecl-site-header-{{ ecl_branding }}__top">
+    <div class="ecl-site-header__container ecl-container">
+      <div class="ecl-site-header__top">
         {{ page.site_header }}
-        <div class="ecl-site-header-{{ ecl_branding }}__action">
+        <div class="ecl-site-header__action">
           {{ page.site_header_secondary }}
         </div>
       </div>
diff --git a/templates/navigation/links--language-block.html.twig b/templates/navigation/links--language-block.html.twig
index 886570ea7..1d83730a4 100644
--- a/templates/navigation/links--language-block.html.twig
+++ b/templates/navigation/links--language-block.html.twig
@@ -14,7 +14,6 @@
     icon_path: ecl_icon_path,
     items: languages,
     eu_languages: eu_languages,
-    non_eu_languages: non_eu_languages,
-    ecl_branding: ecl_branding
+    non_eu_languages: non_eu_languages
   } only %}
 {%- endif %}