diff --git a/.gitignore b/.gitignore
index 005dd7b..2eea059 100644
--- a/.gitignore
+++ b/.gitignore
@@ -287,4 +287,6 @@ cython_debug/
 #  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
 #  and can be added to the global gitignore or merged into this file.  For a more nuclear
 #  option (not recommended) you can uncomment the following to ignore the entire idea folder.
-#.idea/
\ No newline at end of file
+#.idea/
+src/notebooks_metz/
+src/server/editable_requirements.txt
diff --git a/src/server/BreCal/validators/validation_rule_functions.py b/src/server/BreCal/validators/validation_rule_functions.py
index 92bf24e..cbce37e 100644
--- a/src/server/BreCal/validators/validation_rule_functions.py
+++ b/src/server/BreCal/validators/validation_rule_functions.py
@@ -54,6 +54,7 @@ class ValidationRuleBaseFunctions():
         self.sql_handler = sql_handler
         self.time_logic = TimeLogic()
         self.error_message_dict = error_message_dict
+        self.ignore_port_administration_flag = True # flag: turn off all port administration validation rules
 
     def describe_error_message(self, key)->str:
         """
@@ -127,7 +128,10 @@ class ValidationRuleBaseFunctions():
             return violation_state
 
         # filter by participant types of interest (agency, mooring, portauthority/administration, pilot, tug)
-        participant_types = [ParticipantType.AGENCY.value, ParticipantType.MOORING.value, ParticipantType.PORT_ADMINISTRATION.value, ParticipantType.PILOT.value, ParticipantType.TUG.value]
+        if not self.ignore_port_administration_flag:
+            participant_types = [ParticipantType.AGENCY.value, ParticipantType.MOORING.value, ParticipantType.PORT_ADMINISTRATION.value, ParticipantType.PILOT.value, ParticipantType.TUG.value]
+        else:
+            participant_types = [ParticipantType.AGENCY.value, ParticipantType.MOORING.value, ParticipantType.PORT_ADMINISTRATION.value, ParticipantType.PILOT.value, ParticipantType.TUG.value]
         df_times = df_times.loc[df_times["participant_type"].isin(participant_types),:]
 
         # exclude missing entries and consider only pd.Timestamp entries (which ignores pd.NaT/null entries)
@@ -342,6 +346,9 @@ class ValidationRuleFunctions(ValidationRuleBaseFunctions):
             - Checks, if times_port_administration.eta_berth is filled in. 
             - Measures the difference between 'now' and 'times_agency.eta_berth'.
         """
+        if self.ignore_port_administration_flag:
+            return self.get_no_violation_default_output()
+        
         if not shipcall.type in [ShipcallType.INCOMING.value]:
             return self.get_no_violation_default_output()
         
@@ -376,12 +383,8 @@ class ValidationRuleFunctions(ValidationRuleBaseFunctions):
             - Checks, if times_port_administration.etd_berth is filled in. 
             - Measures the difference between 'now' and 'times_agency.etd_berth'.
         """
-        if not shipcall.type in [ShipcallType.OUTGOING.value, ShipcallType.SHIFTING.value]:
-            return self.get_no_violation_default_output()
-        
-        # check, if the header is filled in
-        unassigned = self.sql_handler.check_if_any_participant_of_type_is_unassigned(shipcall, *[ParticipantType.AGENCY, ParticipantType.PORT_ADMINISTRATION])
-        if unassigned:
+        # check, if the header is filled in (agency & PORT_ADMINISTRATION)
+        if (len(df_times.loc[df_times["participant_type"]==ParticipantType.AGENCY.value]) != 1) or (len(df_times.loc[df_times["participant_type"]==ParticipantType.PORT_ADMINISTRATION.value]) != 1):
             return self.get_no_violation_default_output()
         
         # preparation: obtain the correct times of the participant, define the query time and the key time
diff --git a/src/server/tests/validators/test_validation_rule_functions.py b/src/server/tests/validators/test_validation_rule_functions.py
index 2593e85..9eac8a4 100644
--- a/src/server/tests/validators/test_validation_rule_functions.py
+++ b/src/server/tests/validators/test_validation_rule_functions.py
@@ -343,8 +343,10 @@ def test_validation_rule_fct_missing_time_portadministration_berth_eta__shipcall
     # apply the validation rule
     (state, msg) = vr.validation_rule_fct_missing_time_portadministration_berth_eta(shipcall=shipcall, df_times=df_times)
 
-    # expectation: green state, no msg
-    assert state==StatusFlags.YELLOW, f"function should return 'yellow', because the participant did not provide a time and the shipcall takes place soon (according to the agency)"
+    if not vr.ignore_port_administration_flag:
+        assert state==StatusFlags.YELLOW, f"function should return 'yellow', because the participant did not provide a time and the shipcall takes place soon (according to the agency)"
+    else:
+        assert state==StatusFlags.GREEN, f"function should return 'green', because the feature flag is set, which disables this validation rule"
     return
 
 
@@ -381,8 +383,10 @@ def test_validation_rule_fct_missing_time_portadministration_berth_etd__shipcall
     # apply the validation rule
     (state, msg) = vr.validation_rule_fct_missing_time_portadministration_berth_etd(shipcall=shipcall, df_times=df_times)
 
-    # expectation: green state, no msg
-    assert state==StatusFlags.YELLOW, f"function should return 'yellow', because the participant did not provide a time and the shipcall takes place soon (according to the agency)"
+    if not vr.ignore_port_administration_flag:
+        assert state==StatusFlags.YELLOW, f"function should return 'yellow', because the participant did not provide a time and the shipcall takes place soon (according to the agency)"
+    else:
+        assert state==StatusFlags.GREEN, f"function should return 'green', because the ignore flag is set"
     return
 
 def test_validation_rule_fct_missing_time_pilot_berth_eta__shipcall_soon_but_participant_estimated_time_undefined(build_sql_proxy_connection):
@@ -416,7 +420,7 @@ def test_validation_rule_fct_missing_time_pilot_berth_eta__shipcall_soon_but_par
     # apply the validation rule
     (state, msg) = vr.validation_rule_fct_missing_time_pilot_berth_eta(shipcall=shipcall, df_times=df_times)
 
-    # expectation: green state, no msg
+    # expectation: yellow state
     assert state==StatusFlags.YELLOW, f"function should return 'yellow', because the participant did not provide a time and the shipcall takes place soon (according to the agency)"
     return