GHG Scope 1/2/3 calculation plan with evidence checklist

Create a GHG emissions calculation plan for {organization_name} for {reporting_year}.

Inputs:
- Facilities and energy data availability: {energy_data}
- Fuel types and usage: {fuel_usage}
- Purchased electricity details: {electricity_details}
- Scope 3 categories relevant: {scope3_categories}
- Preferred standard (e.g., GHG Protocol): {ghg_standard}

Output:
1) Calculation approach by scope and category (activity data → emission factors → CO2e).
2) Data request list and evidence checklist (invoices, meter reads, ERP extracts).
3) Controls and QA steps (reconciliations, reasonableness checks).
4) Disclosure and boundary notes (organizational boundary, market vs location-based if applicable).

Do not invent emission factors; identify sources needed.