---
title: "Returns national inventory data for the provided year"
method: GET
path: "/v1.0/reporting-data/national-inventory-data"
tags: ["Reporting Data"]
---

# Returns national inventory data for the provided year

`GET /v1.0/reporting-data/national-inventory-data`

## Query parameters

- `year` string, required

## Response `200`

OK

- NationalInventoryDataDTO
  - `sectors` Sector[]
    - `name` string
    - `displayName` string
    - `fuels` Fuel[]
      - `name` string
      - `emissionCalculationParameters` InventoryEmissionCalculationParamsDTO
        - `emissionFactor` string, decimal
        - `netCalorificValue` string, decimal
        - `oxidationFactor` string, decimal
        - `ncvMeasurementUnit` 'GJ_PER_TONNE' | 'GJ_PER_NM3'
        - `efMeasurementUnit` 'TONNES_OF_CO2_PER_TJ' | 'TONNES_OF_CO2_PER_NM3' | 'TONNES_OF_CO2_PER_TONNE'

## Other responses

- `403` — Forbidden
- `500` — Internal Server Error

## Changes

- **2025-11-18** `75eb25c6c016` — 2 warning
  - removed the optional property `security` from the response with the `403` status
  - removed the optional property `security` from the response with the `500` status
- **2025-07-17** `ae162f3b8695` — 2 info
  - added the optional property `security` to the response with the `403` status
  - added the optional property `security` to the response with the `500` status

[Change history](https://skmtc.dev/beis/apis/mets-api-documentation/changes/v1.0/reporting-data/national-inventory-data/get.md)

---

[API](https://skmtc.dev/beis/apis/mets-api-documentation.md) · [All operations](https://skmtc.dev/beis/apis/mets-api-documentation/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/beis/mets-api-documentation/revisions/c3a5c6052f25/schema)