Federal Decree-Law No. 11 of 2024 has been in force since 30 May 2025. The compliance period ran to 30 May 2026 and an extension is expected. Check MOCCAE for the latest date.Fines for not measuring, reporting or keeping records: AED 50,000 to AED 2,000,000. Repeat violations can double the fine.No minimum size: small, free zone and government entities are all covered. MOCCAE designates which sources report.Scope 3 is expected from 2027 but is not yet confirmed in law. DecarbOS can already prepare it for you.Keep emissions records for at least 5 years. DecarbOS keeps yours for 7 years in the UAE.Upload 12 months of bills from the same calendar year: electricity, cooling, fuel and refrigerant invoices.Bill tip: download the PDF from your utility app. If you photograph a bill, lay it flat in good light.Missing a month? You can enter the number by hand, estimate it, or mark it not available. The report labels every choice.Organisations emitting 0.5 million tonnes CO2e or more (Scope 1 + 2) need third-party verification.Physical climate risk reports describe heat, water, flood, dust and coastal hazards at your location using satellite and official data.Climate reports currently cover UAE sites only. We check the data for your location before you pay.Live air quality in Dubai: PM2.5 6.0 ug/m3 (Good), 2026-10-22 05:00 UTC. Source: OpenAQ.
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Scope 1, 2 and 3, made simple

Three words that describe where your emissions come from. Tap the ? buttons for short explanations.

Scope of service. DecarbOS Intelligence currently provides Scope 1, Scope 2 and Scope 3 reporting and Physical Climate Risk reports only. Full ESG (Environmental, Social and Governance) reporting is coming soon. Under the UAE Climate Law (Federal Decree-Law No. 11 of 2024), filing Scope 1 and Scope 2 on mrv.ae is treated on this website as mandatory for every organisation; Scope 3 is optional.

Scope 1

What you burn or leak yourself: fuel in vehicles and generators, gas for cooking, refrigerant leaks.

  • Diesel
  • Petrol
  • LPG (cooking or heating gas)
  • Natural gas
  • Refrigerant top-ups
Mandatory

Scope 2

The energy you buy: electricity and district cooling. The smoke is at the power station, the cause is your use.

  • Purchased electricity
  • District cooling
Mandatory

Scope 3

Everything else you pay for but do not control: water, waste, flights, commuting, purchases.

  • Water supply
  • Waste
  • Business flights
  • Employee commuting
  • Purchased goods and services
Not yet mandatory

Every organisation that uses fuel or buys electricity releases greenhouse gases, mainly carbon dioxide. Reporting means counting how much you used, converting it into one comparable number, and sending it to the regulator. You do not need technical training. You need your bills.

The formula

Emissions (kg CO2e) = Activity amount x Emission factor

Activity amount is what your bill shows: litres of diesel, kilowatt-hours (kWh) of electricity. The emission factor says how many kilograms of CO2e one unit releases. CO2e (carbon dioxide equivalent) turns every gas into the same unit, so methane or refrigerant gases can be added to carbon dioxide.

Scope 1: what you burn or leak yourself

Direct emissions from sources your company owns or controls.

  • Diesel or petrol in company vehicles and generators.
  • Gas for cooking, boilers or heaters (LPG, natural gas).
  • Refrigerant gas that leaks from air conditioners and chillers. These gases warm the planet far more than carbon dioxide, so even small top-ups count.

Scope 2: the energy you buy

Indirect emissions from the electricity, steam, heating or cooling you buy. The emissions happen at the power station or cooling plant, but they are caused by your use.

  • Electricity from DEWA, SEWA, EWEC and the other utilities.
  • District cooling (chilled water) from providers such as Empower or Tabreed.
  • Location-based method: uses the average grid factor for where you are. Market-based method: uses your supplier or certificate details. The location-based method is the usual starting point.

Scope 3: everything else in your value chain

Indirect emissions from activities you pay for but do not control. There are 15 official categories. DecarbOS covers the ones most small and mid-size UAE companies can measure from records they already hold.

  • Water supply you buy.
  • Waste your contractor collects and treats.
  • Business flights.
  • Employees travelling to work.
  • Purchased goods and services, estimated from how much you spent.
Scope 3 is not yet mandatory in the UAE. It is expected from 2027, so many companies start collecting the data now.

Who does the calculation?

The MOCCAE reporting tool asks for your activity data (litres, kWh) and calculates the official emissions itself. DecarbOS gathers and checks that data from your bills and gives it to you in the same order as the tool, so you can type each number across. Where a verified emission factor is available we also show an indicative total so you can sense-check the result.

A worked example

Example only, with an invented factor: a bill shows 4,310 kWh. If the factor were 0.40 kg CO2e per kWh, emissions = 4,310 x 0.40 = 1,724 kg CO2e, or 1.72 tonnes. The real factor comes from your utility or the national tool, not from this example.

Bills to Collect   Register Now

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