diff --git a/docs/_data/components/schemas/array-max-forecast-periods.yaml b/docs/_data/components/schemas/array-max-forecast-periods.yaml
index 37af3959..98d1a7b3 100644
--- a/docs/_data/components/schemas/array-max-forecast-periods.yaml
+++ b/docs/_data/components/schemas/array-max-forecast-periods.yaml
@@ -36,6 +36,12 @@ resource-forecast-proposal-slim:
   items:
     $ref: 'array-max-emergency-ratings.yaml#/slim'
 
+resource-forecast-inputs:
+  <<: *periods
+  items:
+    type: number
+    format: float
+
 missing-forecast:
   <<: *limit
   properties:
diff --git a/docs/_data/components/schemas/array-max-monitored-elements.yaml b/docs/_data/components/schemas/array-max-monitored-elements.yaml
index 9ce73299..f3a5c554 100644
--- a/docs/_data/components/schemas/array-max-monitored-elements.yaml
+++ b/docs/_data/components/schemas/array-max-monitored-elements.yaml
@@ -22,6 +22,51 @@ forecast-limits-slim-snapshot:
       <<: *max
       items:
         $ref: 'array-max-forecast-periods.yaml#/resource-forecast-proposal-slim'
+    inputs-used: &inputs-used-slim
+      description: |
+
+        Optional list of quantities used as input to the ratings determination.
+        The particular information exchange determines which values may be expected
+        as well as the conventions used to represent those values. This property
+        is included to prescribe a way to include these inputs.
+
+      type: array
+      minItems: 1
+      maxItems: 50
+      items: &inputs-used-slim-items
+        type: object
+        properties: &inputs-used-slim-items-props
+          name:
+            type: string
+            format: free-text
+            maxLength: 50
+          values: &inputs-used-slim-items-props-values
+            <<: *max
+            description: >
+              Since this is expected to be used for wind speed or temperature,
+              we expect an array of numbers for each resource. An empty array
+              is used to indicate that the inputs are not available for a
+              particular resource. This could occur if the inputs were not provided
+              by the Ratings Provider or if a recourse rating was utilized.
+            items:
+              $ref: ./array-max-forecast-periods.yaml#/resource-forecast-inputs
+          unit:
+            type: string
+            description: |
+              Since we are not specifying which inputs shall be
+              provided, we cannot specify a definitive list of units, but
+              implementors are encouraged to use UnitSymbol from CIM when
+              appropriate: The CIM may not include appropriate units for
+              all inputs, e.g., wind speed, degrees Fahrenheit, etc.
+            format: unit
+            maxLength: 50
+        required:
+          - name
+          - values
+          - unit
+  required:
+    - snapshot-header
+    - limits
 
 forecast-limits-detailed-snapshot:
   type: object
@@ -38,6 +83,9 @@ forecast-limits-detailed-snapshot:
       description: Forecast including provenance information.
       items:
         $ref: 'array-max-forecast-periods.yaml#/forecast-limit-item-detailed'
+  required:
+    - snapshot-header
+    - limits
 
 named-power-system-resources: &psr
   <<: *max
@@ -76,6 +124,8 @@ forecast-proposal-slim:
       description: Forecasted Ratings
       items:
         $ref: 'array-max-forecast-periods.yaml#/resource-forecast-proposal-slim'
+    inputs-used:
+      <<: *inputs-used-slim
   required:
     - proposal-header
     - ratings
@@ -233,6 +283,29 @@ realtime-limits-snapshot-slim:
       description: Real-time limits
       items:
         $ref: 'array-max-emergency-ratings.yaml#/slim'
+    inputs-used:
+      <<: *inputs-used-slim
+      items:
+        <<: *inputs-used-slim-items
+        properties:
+          <<: *inputs-used-slim-items-props
+          values:
+            <<: *inputs-used-slim-items-props-values
+            description: |
+              This is aligned with the `limits` property such that each resource
+              entry is in the same position here.
+
+              A null is used to indicate that the input is not available for a
+              particular resource. This could occur if the inputs were not provided
+              by the Ratings Provider or if a recourse rating was utilized.
+            items:
+              type: number
+              format: float
+              nullable: true
+
+  required:
+    - snapshot-header
+    - limits
 
 realtime-proposal:
   type: object
@@ -255,6 +328,40 @@ realtime-proposal:
           - resource-id
         - $ref: ./limit-proposal.yaml
 
+    inputs-used: &inputs-used-slim-rt
+      <<: *inputs-used-slim
+      items:
+        type: object
+        properties:
+          name:
+            type: string
+            format: free-text
+            maxLength: 50
+          values:
+            <<: *max
+            type: array
+            description: >
+              Since this is expected to be used for wind speed or temperature,
+              we expect an array of numbers for each resource. An empty array
+              is used to indicate that the inputs are not available for a
+              particular resource. This could occur if the inputs were not provided
+              by the Ratings Provider or if a recourse rating was utilized.
+            items:
+              $ref: ./array-max-forecast-periods.yaml#/resource-forecast-inputs
+          unit:
+            type: string
+            description: |
+              Since we are not specifying which inputs shall be
+              provided, we cannot specify a definitive list of units, but
+              implementors are encouraged to use UnitSymbol from CIM when
+              appropriate: The CIM may not include appropriate units for
+              all inputs, e.g., wind speed, degrees Fahrenheit, etc.
+            format: unit
+            maxLength: 50
+        required:
+          - name
+          - values
+          - unit
   required:
   - proposal-header
   - ratings
@@ -270,6 +377,8 @@ realtime-proposal-slim:
       description: Real-Time Ratings Proposals
       items:
         $ref: "array-max-emergency-ratings.yaml#/slim"
+    inputs-used:
+      <<: *inputs-used-slim
   required:
     - proposal-header
     - ratings
diff --git a/docs/_data/components/schemas/limit-proposal.yaml b/docs/_data/components/schemas/limit-proposal.yaml
index fe2a4ee4..f184d384 100644
--- a/docs/_data/components/schemas/limit-proposal.yaml
+++ b/docs/_data/components/schemas/limit-proposal.yaml
@@ -35,7 +35,7 @@ allOf:
                 provided, we cannot specify a definitive list of units, but
                 implementors are encouraged to use UnitSymbol from CIM when
                 appropriate: The CIM may not include appropriate units for
-                all inputs, e.g., wind speed.
+                all inputs, e.g., wind speed, degrees Fahrenheit, etc.
               format: unit
               maxLength: 50
           required:
diff --git a/docs/example-narratives/examples/forecast-ratings-proposal-slim-patch.json b/docs/example-narratives/examples/forecast-ratings-proposal-slim-patch.json
index b60760f4..08815db2 100644
--- a/docs/example-narratives/examples/forecast-ratings-proposal-slim-patch.json
+++ b/docs/example-narratives/examples/forecast-ratings-proposal-slim-patch.json
@@ -41,5 +41,15 @@
       [145, 150],
       [140, 145]
     ]
+  ],
+  "inputs-used": [
+    {
+      "name": "dry bulb temperature (Fahrenheit)",
+      "unit": "degF",
+      "values": [
+        [ 50, 51, 52, 53 ],
+        [ 46.1, 46.5, 47.1, 48 ]
+      ]
+    }
   ]
 }
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