Most of Nigeria's goods still travel by road, and almost none of that haulage is measured for emissions in a way anyone outside the company can check. Ask ten fleet owners in Lagos or Kano how much CO2 their trucks produced last year and you will get ten different methods, or a polite shrug. A Green Freight standard is meant to end that. It sets one method for counting fuel and emissions, one way of reporting them, and one badge that customers, lenders and regulators can trust without sending their own auditors.
That sounds like paperwork. For a well-run fleet it is closer to a sales document.
Why this is arriving now
The pressure is coming from customers first, multinational manufacturers and FMCG brands report their own supply chain emissions to head offices in Europe and elsewhere, and road transport sits inside those figures. So their procurement teams send hauliers questionnaires. One asks for fuel per trip, another wants tonne-kilometres, athird wants a sustainability policy signed by a director. Each one is slightly different, and each one takes somebody in your office most of a week.
Policy is moving in the same direction, nigeria's Climate Change Act of 2021 set up the National Council on Climate Change, and the country has committed to net zero by 2060. The Presidential CNG Initiative, pushed hard since the petrol subsidy ended in 2023, has put gas-powered trucks and conversion kits into real conversations about fleet renewal. None of that forces a haulier to certify anything today. It does mean the questions are not going away.
A national or sector standard replaces the pile of questionnaires with a single certificate. Earn it once, renew it on a schedule, and send the certificate when a client asks.
What gets checked
The international reference points are the GLEC Framework, published by the Smart Freight Centre, and ISO 14083, the standard for calculating emissions from transport chains. Any serious Nigerian scheme will borrow from them. In practice, verification comes down to three areas.
Fuel and activity data. Litres bought and litres used, per vehicle, matched against kilometres driven and tonnes carried. Burning a litre of diesel releases roughly 2.7 kg of CO2, so once your fuel records are solid, the emissions arithmetic is simple. The hard part is the records.
How the vehicles are driven and routed. Idling at loading bays, empty return legs and harsh acceleration all burn fuel that moves nothing. Schemes look for evidence that you track these and act on them: driver scorecards, planned backhauls, route plans that avoid the worst gridlock.
How the vehicles are kept. Tyre pressures, air filters, injector servicing. A badly maintained engine can use noticeably more diesel than a healthy one doing the same job, and it shows up in the fuel data anyway.
Most green freight programmes abroad use tiers, often bronze, silver and gold, or a star rating like the UK's ECO Stars scheme. A tiered scheme matters here because a 12-truck operator in Onitsha should be able to join at entry level and climb, instead of facing a bar that only the biggest fleets can clear.
What it costs, and what it saves
Certification will carry a fee and some staff time. Telematics helps but is not required at entry level; good fuel cards and a disciplined spreadsheet will get a small fleet through the first tier.
The savings side is easier to see. Diesel is one of the largest costs on any Nigerian haulage budget. The habits a verifier looks for (less idling, fewer empty kilometres, cleaner engines) are the same habits that cut the fuel bill. In our experience, a fleet that measures fuel properly for three months nearly always finds money it was losing.
There is also the question of who gets the contract. When two hauliers quote a similar rate, the one who can hand over verified emissions data saves the client's sustainability team a headache. That is a real advantage in a tender, and it will grow.
Where to start this quarter
You do not need to wait for a finished national scheme. Pick one depot or one route and do four things:
- Log every litre of diesel against a vehicle registration and a trip. No pooled fuel.
- Record kilometres and payload for every trip, including empty legs.
- Keep maintenance records per vehicle, with dates, in one place.
- Name one person who owns this data and reviews it monthly.
After a quarter you will have a baseline. That baseline is what any verifier will ask for first, and it is also the number you will want when a customer's questionnaire lands next.
If you want a second pair of eyes on your fuel data or help preparing for accreditation, the SMG team works with fleets of every size on exactly this.