diff --git a/pelicun/assessment.py b/pelicun/assessment.py
index 1df62c5d9..6e7f2f7d3 100644
--- a/pelicun/assessment.py
+++ b/pelicun/assessment.py
@@ -83,6 +83,8 @@
         '1_excessive.coll.DEM': {'DS1': 'collapse_DS1'},
         '2_collapse': {'DS1': 'ALL_NA'},
         '3_excessiveRID': {'DS1': 'irreparable_DS1'},
+        '4_irreparable': {'DS1': 'ALL_NA'},
+        '5_irreparable': {'DS1': 'collapse_DS0'},
     },
     # TODO(AZ): expand with ground failure logic
     'Hazus Earthquake': {
@@ -982,14 +984,14 @@ def calculate_damage(  # noqa: C901
             component_db = []
 
         if component_database_path is not None:
-            if custom_model_dir is None:
-                msg = (
-                    '`custom_model_dir` needs to be specified '
-                    'when `component_database_path` is not None.'
-                )
-                raise ValueError(msg)
-
             if 'CustomDLDataFolder' in component_database_path:
+                if custom_model_dir is None:
+                    msg = (
+                        '`custom_model_dir` needs to be specified '
+                        'when `component_database_path` includes CustomDLDataFolder.'
+                    )
+                    raise ValueError(msg)
+
                 component_database_path = component_database_path.replace(
                     'CustomDLDataFolder', custom_model_dir
                 )
@@ -1501,14 +1503,14 @@ def load_consequence_info(
             conseq_df = pd.DataFrame()
 
         if consequence_database_path is not None:
-            if custom_model_dir is None:
-                msg = (
-                    'When `consequence_database_path` is specified, '
-                    '`custom_model_dir` needs to be specified as well.'
-                )
-                raise ValueError(msg)
-
             if 'CustomDLDataFolder' in consequence_database_path:
+                if custom_model_dir is None:
+                    msg = (
+                        'When `consequence_database_path` includes CustomDLDataFolder, '
+                        '`custom_model_dir` needs to be specified as well.'
+                    )
+                    raise ValueError(msg)
+
                 consequence_database_path = consequence_database_path.replace(
                     'CustomDLDataFolder', custom_model_dir
                 )
diff --git a/pelicun/base.py b/pelicun/base.py
index d26341fb3..50c10684e 100644
--- a/pelicun/base.py
+++ b/pelicun/base.py
@@ -1323,6 +1323,11 @@ def dedupe_index(dataframe: pd.DataFrame, dtype: type = str) -> pd.DataFrame:
     'Peak Link Beam Chord Rotation': 'LBR',
     # Wind Intensity
     'Peak Gust Wind Speed': 'PWS',
+    # Wind Demands
+    'Peak Wind Force': 'PWF',
+    'Peak Internal Force': 'PIF',
+    'Peak Line Force': 'PLF',
+    'Peak Wind Pressure': 'PWP',
     # Inundation Intensity
     'Peak Inundation Height': 'PIH',
     # Shaking Intensity
diff --git a/pelicun/settings/default_units.json b/pelicun/settings/default_units.json
index 1b387b4a4..3931968fe 100644
--- a/pelicun/settings/default_units.json
+++ b/pelicun/settings/default_units.json
@@ -56,6 +56,13 @@
     "kip": 4448.2179868,
     "kips": 4448.2179868
   },
+  "line_force": {
+    "Npm": 1.0,
+    "kNpm": 1000.0,
+    "lbpft": 14.5939,
+    "kippft": 14593.9,
+    "kipspft": 14593.9
+  },
   "pressure": {
     "Pa": 1.0,
     "kPa": 1000.0,
diff --git a/pelicun/settings/input_schema.json b/pelicun/settings/input_schema.json
index 19f54ce6b..346a9b05b 100644
--- a/pelicun/settings/input_schema.json
+++ b/pelicun/settings/input_schema.json
@@ -213,9 +213,7 @@
               },
               "required": [
                 "DemandType",
-                "CapacityDistribution",
-                "CapacityMedian",
-                "Theta_1"
+                "CapacityMedian"
               ]
             },
             "DamageProcess": {
@@ -322,9 +320,7 @@
                   },
                   "required": [
                     "Unit",
-                    "Median",
-                    "Distribution",
-                    "Theta_1"
+                    "Median"
                   ]
                 },
                 "ReplacementCarbon": {
@@ -359,9 +355,7 @@
                   },
                   "required": [
                     "Unit",
-                    "Median",
-                    "Distribution",
-                    "Theta_1"
+                    "Median"
                   ]
                 },
                 "ReplacementTime": {
@@ -396,9 +390,7 @@
                   },
                   "required": [
                     "Unit",
-                    "Median",
-                    "Distribution",
-                    "Theta_1"
+                    "Median"
                   ]
                 },
                 "ReplacementCost": {
@@ -433,9 +425,7 @@
                   },
                   "required": [
                     "Unit",
-                    "Median",
-                    "Distribution",
-                    "Theta_1"
+                    "Median"
                   ]
                 }
               }
diff --git a/pelicun/tests/basic/test_base.py b/pelicun/tests/basic/test_base.py
index 327ef9c36..11f8e2dee 100644
--- a/pelicun/tests/basic/test_base.py
+++ b/pelicun/tests/basic/test_base.py
@@ -864,6 +864,11 @@ def test_parse_units() -> None:
         'lbf': 4.4482179868,
         'kip': 4448.2179868,
         'kips': 4448.2179868,
+        'Npm': 1.0,
+        'kNpm': 1000.0,
+        'lbpft': 14.5939,
+        'kippft': 14593.9,
+        'kipspft': 14593.9,
         'Pa': 1.0,
         'kPa': 1000.0,
         'MPa': 1000000.0,
diff --git a/pelicun/tools/DL_calculation.py b/pelicun/tools/DL_calculation.py
index 95df82cd3..74f3fd44f 100644
--- a/pelicun/tools/DL_calculation.py
+++ b/pelicun/tools/DL_calculation.py
@@ -839,6 +839,14 @@ def _parse_config_file(  # noqa: C901
 
     # Ensure `DL/Damage/CollapseFragility` contains all required keys.
     if is_specified(config, 'DL/Damage/CollapseFragility'):
+        if is_unspecified(
+            config, 'DL/Damage/CollapseFragility/CapacityDistribution'
+        ):
+            config['DL']['Damage']['CollapseFragility']['CapacityDistribution'] = (
+                'deterministic'
+            )
+            config['DL']['Damage']['CollapseFragility']['Theta_1'] = 'N/A'
+
         for thing in ('CapacityDistribution', 'CapacityMedian', 'Theta_1'):
             if is_unspecified(config, f'DL/Damage/CollapseFragility/{thing}'):
                 msg = (