Green and social criteria in public tenders: where they appear and how to score on them

A decade ago, a public tender asked what you would deliver and what it would cost. Today it may also ask what the delivery emits, who will do the work and under what conditions, and what happens to the product at the end of its life. Environmental and social criteria have moved from the margins of the procurement documents into the scoring, and a bidder who cannot answer them loses points to one who can, whatever the price.

This guide explains where these criteria may lawfully appear, what evidence counts, and how to prepare.

The legal frame

Directive 2014/24/EU allows environmental and social considerations at every stage of a procedure, on one condition: they must be linked to the subject-matter of the contract. A buyer may reward the carbon footprint of the vehicles it is buying; it may not reward the bidder's general corporate policy on something unrelated to the contract.

Where the criteria appear:

• Technical specifications (Article 42) may refer to the production process, for example "electricity from renewable sources" or "timber from sustainably managed forests", even where the process leaves no trace in the final product.
• Labels (Article 43): the buyer may require a specific eco-label or social label as proof, provided the label's requirements are linked to the contract, objectively verifiable, set through an open procedure Open procedure Anyone may submit a bid, in one step, with no pre-selection. Full entry and accessible to all. Equivalent labels must be accepted, and a bidder that could not obtain the label in time may prove equivalence another way.
• Selection criteria may include environmental management systems (Article 62): EMAS registration, ISO 14001 or equivalent.
• Award criteria Award criteria How bids are scored: price alone, or price and quality weighed together (the best price-quality ratio). Full entry (Article 67): the most economically advantageous tender may be identified on the basis of quality including environmental and social characteristics, and the price may be assessed as life-cycle cost (Article 68), including energy use, maintenance, end-of-life handling and, where a method exists, the cost of emissions.
• Contract performance conditions (Article 70): obligations during delivery, such as employing long-term unemployed people, running apprenticeships, using low-emission vehicles, or reporting on waste.
• Reserved contracts (Article 20): buyers may reserve a procedure for sheltered workshops and operators whose main aim is the integration of disabled or disadvantaged people, where at least 30 percent of the workforce is such people.

Two obligations sit underneath everything. Article 18(2) requires member states to ensure that contractors comply with environmental, social and labour law, including collective agreements; a tender priced by breaching them must be rejected as abnormally low. And sector rules add mandatory minimums: the Clean Vehicles Directive sets minimum shares of clean vehicles in public fleets, and energy-efficiency rules oblige public buyers to buy only high-efficiency products above the EU thresholds.

What buyers actually ask for

Reading tenders across the EU, the criteria cluster into a few families:

Emissions and energy. Fleet emission classes, energy labels for equipment, a carbon footprint for the delivery of the contract, use of renewable electricity, a reduction plan with milestones.

Materials and waste. Recycled content, recyclability, packaging reduction, take-back schemes, restricted substances beyond the legal minimum, certified timber or textiles.

Labour and inclusion. Employment of people distant from the labour market, apprenticeships, gender balance in the delivery team, accessibility of the service, compliance with a stated collective agreement, subcontractor chain transparency.

Local and short supply chains. Lawful only when linked to the contract's performance - fresh food delivered within a stated time, response times for maintenance - never as a nationality or location preference as such.

The weight varies from a few points to a third of the score. The award criteria section of the documents tells you exactly how much, and the scoring method tells you how the points are earned: often a scale from "no commitment" through "commitment with evidence" to "certified".

Evidence that scores

Evaluators award points for what they can verify. In descending order of weight:

1. Certifications and registrations: EMAS, ISO 14001, ISO 50001, the EU Ecolabel, FSC or PEFC, energy labels, social labels recognised in the country. Each is a document you attach, not a claim you make.
2. Measured data: a carbon footprint calculated with a stated method, fleet lists with emission classes, energy consumption figures from manufacturer sheets.
3. A concrete plan: who does what, by when, with what budget, measured how. "We will hire two apprentices in month one and report quarterly" scores; "we are committed to training" does not.
4. References: the same commitments delivered on a previous contract, with the buyer's contact.

Commitments made in the tender become contract conditions. A buyer that awarded points for a promise will monitor it, and the exclusion grounds include significant deficiencies in performing a previous contract.

A worked example of a scored criterion

A municipality tenders a four-year contract for the collection of household waste. Among the award criteria: "Environmental performance of the collection fleet, 15 points: 0 points for a fleet meeting the legal minimum; 5 points for at least 50 percent of vehicles in the highest emission class; 10 points for at least 50 percent zero-emission vehicles; 15 points for a fully zero-emission fleet from month 12, supported by a fleet list and a financed acquisition plan."

Bidder A has a modern diesel fleet and writes a page on its commitment to sustainability: 5 points. Bidder B commits to a zero-emission fleet from month 12, attaches the manufacturer's delivery confirmation for twelve electric trucks, the depot charging plan and the bank's financing letter: 15 points. Bidder C promises the same but attaches nothing: the evaluators cannot verify it and, following the scale, award 0 for the unsupported promise and 5 for the current fleet.

Ten points separate A and B on one criterion, which on a price/quality split of 60/40 is the equivalent of a price difference of roughly 15 percent. B's trucks cost more than A's diesels, and B priced them in; the criterion paid for them. That is how green and social scoring works when a buyer writes it well: it is not a bonus for good intentions, it is a purchase of a specific outcome, and the bidder who can prove delivery is paid for it.

Mistakes that cost points

• Generic policy instead of contract-specific commitment. A corporate sustainability report is not an answer to "how will this contract be delivered".
• Claims without evidence. Evaluators are not allowed to assume; a claim they cannot verify is scored as absent.
• Ignoring a mandatory requirement. A specification that requires an emission class is a pass/fail gate, not an award criterion. Failing it ends the bid before the scoring.
• Pricing the commitment out. Apprenticeships, reporting and cleaner equipment cost money. Put it in the price; a commitment that the price cannot fund is a future penalty.
• Challenging the criterion after losing. If a criterion is not linked to the subject-matter, raise it during the clarification phase. Review bodies rarely accept the complaint after the award.

Preparing once, using many times

Most of the evidence is reusable. Build a file with your certifications, your fleet and equipment data, your carbon method and last year's figure, your standard apprenticeship and inclusion plan, and two references where you delivered them. Refresh it yearly. Then each tender's green and social section becomes a matter of selecting and adapting, not inventing.

The direction of travel is one way. Criteria that are optional today become minimum requirements in the next revision of the documents, and buyers copy each other. Reading how the buyers in your sector score these criteria now, in the tenders and the awards they publish, is how you find out what next year's tender will require.