Sustainability questions now reach smaller UK businesses from three directions — public tenders, large customers and EU value chains — and each runs on a different rulebook. Some carry a legal obligation. Some are contractual. Some you can push back on. Telling them apart is most of the work.
Here is a typical questionnaire. Four of those eight lines are obligations, two are negotiable, and two you can usually decline — but which is which depends entirely on who is asking.
Four are obligations. Two are negotiable. Two you can usually decline. Illustrative example — your own position depends on who is asking and what you supply.
We have mapped every line of a typical supplier questionnaire against all twelve frameworks — so you can see at a glance which sections apply to you, and which you can leave. One page, no jargon, nothing to buy.
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Open the matrixMost suppliers only recognise one of these until the others arrive. They behave very differently — and the one people underestimate is the first.
The hardest edge. A Carbon Reduction Plan is a condition of participation, not a scored nicety — miss it and the bid is out before anyone reads your pricing. NHS Supply Chain went further: since 6 April 2026, suppliers must reach Evergreen Level 1 at tender close.
From April 2027 the NHS extends carbon reporting to all relevant global Scope 1, 2 and 3 emissions.
Cascaded down supply chains by main contractors, manufacturers and retailers, usually through a rating platform. Contractual rather than statutory — but a buyer setting a minimum score means losing the account, not just one tender.
CDP reports almost 45,000 suppliers were asked to disclose by 270 corporate buyers in 2025.
Where the protection sits. Companies reporting under CSRD are restricted from demanding more from smaller suppliers than the Voluntary Standard allows. Separately, EU deforestation rules reach UK exporters of timber, paper, packaging and rubber.
The one place in this list where a supplier can say no with a rule behind them.
They overlap far more than they differ. Energy, fuel, waste, fleet and headcount data feed nearly all of them — what changes is the wrapper, the threshold and the deadline. That is why the answer is a single capture, not twelve forms.
Start with the framework that lets you say no. The Value Chain Cap Checker covers the EU ceiling — written for the person who actually has to fill the form in, usually someone in finance or operations who did not ask for the job.
Omnibus I, the delegated act that sets the cap, and the dates that matter to you.
The two-part test that decides if the cap applies to a request you have been sent.
Six requests that commonly go beyond the standard — and what stays fair game.
The honest limits. Assuming protection you do not have is worse than having none.
Capline is run by an experienced finance professional whose career has covered financial and sustainability reporting and data analysis across small firms and large multinationals.
That range is the whole point. These questionnaires are written at the large end, by people with reporting teams and systems behind them. They land at the small end, where the same information sits across six systems and two filing cabinets, and the person who has to find it already has a full-time job.
So every claim we make is traced to the policy note, the notice or the standard itself, and cited so you can check it rather than take our word for it. That is also how we work: every figure carries a source document, a named owner and the date it was verified.
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