diff --git a/rero_ils/manual_translations.txt b/rero_ils/manual_translations.txt
index 5ed94d191f..3da78f6b4b 100644
--- a/rero_ils/manual_translations.txt
+++ b/rero_ils/manual_translations.txt
@@ -61,6 +61,10 @@ _('rdami:1002')
 _('rdami:1003')
 _('rdami:1004')
 
+# Color content
+_('rdacc:1002')
+_('rdacc:1003')
+
 # oneOff contribution types
 _('Link to person entity')
 _('Person')
diff --git a/rero_ils/modules/items/decorators.py b/rero_ils/modules/items/decorators.py
index 03bc87cf68..18fe2741d9 100644
--- a/rero_ils/modules/items/decorators.py
+++ b/rero_ils/modules/items/decorators.py
@@ -20,7 +20,7 @@
 
 from functools import wraps
 
-from flask import current_app
+from flask import current_app, request
 from invenio_circulation.errors import CirculationException
 from invenio_records_rest.utils import obj_or_import_string
 
@@ -70,6 +70,10 @@ def wrapper(item, *args, **kwargs):
 def check_operation_allowed(action):
     """Check if a specific action is allowed on an item.
 
+    Check if we received an 'ovrride_blocking' query string parameter. If this
+    param is present and set to True (or corresponding True values [1, 'true',
+    , True, ...]) then no CIRCULATION_ACTIONS_VALIDATION should be tested.
+
     Check the CIRCULATION_ACTIONS_VALIDATION configuration file and execute
     function corresponding to the action specified. All function are execute
     until one return False (action denied) or all actions are successful.
@@ -80,13 +84,16 @@ def check_operation_allowed(action):
     def inner_function(func):
         @wraps(func)
         def decorated_view(*args, **kwargs):
-            actions = current_app.config.get(
-                'CIRCULATION_ACTIONS_VALIDATION', {})
-            for func_name in actions.get(action, []):
-                func_callback = obj_or_import_string(func_name)
-                can, reasons = func_callback(args[0], **kwargs)
-                if not can:
-                    raise CirculationException(description=reasons[0])
+            override_blocking = request.args.get('override_blocking', False)
+            override_blocking = bool(override_blocking)
+            if not override_blocking:
+                actions = current_app.config.get(
+                    'CIRCULATION_ACTIONS_VALIDATION', {})
+                for func_name in actions.get(action, []):
+                    func_callback = obj_or_import_string(func_name)
+                    can, reasons = func_callback(args[0], **kwargs)
+                    if not can:
+                        raise CirculationException(description=reasons[0])
             return func(*args, **kwargs)
         return decorated_view
     return inner_function
diff --git a/tests/api/circulation/test_borrow_limits.py b/tests/api/circulation/test_borrow_limits.py
index 77ea0a3cbc..0ac39c61a6 100644
--- a/tests/api/circulation/test_borrow_limits.py
+++ b/tests/api/circulation/test_borrow_limits.py
@@ -149,10 +149,27 @@ def test_checkout_library_limit(
     assert 'error' == data['messages'][0]['type']
     assert 'Checkout denied' in data['messages'][0]['content']
 
+    # try a checkout with 'override_blocking' parameter.
+    #   --> the restriction is no longer checked, the checkout will be success.
+    res, data = postdata(client, 'api_item.checkout', dict(
+        item_pid=item3.pid,
+        patron_pid=patron.pid,
+        transaction_location_pid=loc_public_martigny.pid,
+        transaction_user_pid=librarian_martigny_no_email.pid,
+    ), url_data={'override_blocking': 'true'})
+    assert res.status_code == 200
+    loan3_pid = data.get('action_applied')[LoanAction.CHECKOUT].get('pid')
+
     # reset fixtures
-    #   --> checkin both loaned item
+    #   --> checkin three loaned item
     #   --> reset patron_type to original value
     #   --> reset items to original values
+    res, data = postdata(client, 'api_item.checkin', dict(
+        item_pid=item3.pid,
+        pid=loan3_pid,
+        transaction_location_pid=loc_public_martigny.pid,
+        transaction_user_pid=librarian_martigny_no_email.pid,
+    ))
     res, data = postdata(client, 'api_item.checkin', dict(
         item_pid=item2.pid,
         pid=loan2_pid,