diff --git a/ontology/yaml/resources/TRANSPORT/entity_types/ABSTRACT.yaml b/ontology/yaml/resources/TRANSPORT/entity_types/ABSTRACT.yaml
index 84b480052..98d152e60 100644
--- a/ontology/yaml/resources/TRANSPORT/entity_types/ABSTRACT.yaml
+++ b/ontology/yaml/resources/TRANSPORT/entity_types/ABSTRACT.yaml
@@ -22,4 +22,11 @@ SS:
   opt_uses:
   - failed_alarm
   - lost_power_alarm
+  - fire_alarm
 
+
+EPM:
+  description: "Elevator position monitoring"
+  is_abstract: true
+  uses:
+  - floor_position_mode
diff --git a/ontology/yaml/resources/TRANSPORT/entity_types/ELV.yaml b/ontology/yaml/resources/TRANSPORT/entity_types/ELV.yaml
index 25e498f61..06f582def 100644
--- a/ontology/yaml/resources/TRANSPORT/entity_types/ELV.yaml
+++ b/ontology/yaml/resources/TRANSPORT/entity_types/ELV.yaml
@@ -20,3 +20,12 @@ ELV_SS:
   - ELV
   - SS  
 
+ELV_SS_EPM:
+  description: "Elevator with position/floor and basic alarms."
+  is_canonical: true
+  implements:
+  - ELV
+  - SS
+  - EPM
+  opt_uses:
+  - high_occupancy_alarm
diff --git a/ontology/yaml/resources/fields/telemetry_fields.yaml b/ontology/yaml/resources/fields/telemetry_fields.yaml
index 84ce95ece..69927d187 100644
--- a/ontology/yaml/resources/fields/telemetry_fields.yaml
+++ b/ontology/yaml/resources/fields/telemetry_fields.yaml
@@ -3116,3 +3116,19 @@ literals:
 - ultraviolet_irradiance_sensor:
     fixed_min: 0.0
     flexible_max: 2000.0
+
+- floor_position_mode:
+  - BASEMENT
+  - UPPERGROUND
+  - LOWERGROUND
+  - GROUND
+  - FIRST
+  - SECOND
+  - THIRD
+  - FOURTH
+  - FOURTHMEZ
+  - PLANTROOM
+
+- high_occupancy_alarm:
+  - ACTIVE
+  - INACTIVE
diff --git a/ontology/yaml/resources/states/states.yaml b/ontology/yaml/resources/states/states.yaml
index d97f12781..f8a9f381e 100644
--- a/ontology/yaml/resources/states/states.yaml
+++ b/ontology/yaml/resources/states/states.yaml
@@ -90,3 +90,15 @@ SOFTSTART: "Mode of operation of rectifier where the input power supply is gradu
 NORMAL: "Function, state or flow which is an ideal or expected condition."
 REVERSED: "Function, state or flow which is opposed to the expected or normal condition."
 
+# For elevator 
+BASEMENT: "Floor under ground level"
+LOWERGROUND: "Mezzanine floor just below ground floor"
+UPPERGROUND: "Mezzanine floor just above ground floor"
+GROUND: "Street level floor in a building"
+
+FIRST: "Function, state or Position number 1"
+SECOND: "Function, state or Position number 2"
+THIRD: "Function, state or Position number 3"
+FOURTH: "Function, state or Position number 4"
+FOURTHMEZ: "Mezzanine floor just above the fourth floor in a building"
+PLANTROOM: "Room/Floor in a building with plant equipment"