An EPD requirement doesn't test whether a supplier believes in sustainability. It tests whether their evidence was built to survive being asked for twice. That distinction is about to matter a great deal more. CF25, the Department for Education's new construction framework, live since early 2026, no longer treats EPDs as a nice-to-have. Its Employer's Requirements set a rising bar: the whole-life carbon assessment on a school must be backed by product-specific EPDs across an