FAQs Do I need certification to buy this rat poison? Yes. This is a professional-strength anticoagulant rodenticide, so we cannot supply it in bulk online without proof of competence. You’ll need either a recognised CRRU-approved certificate or membership of a farm assurance scheme that permits rodenticide purchase. Please call us on 01308 485422 and we’ll provide an email address for your certificate or declaration form, and confirm everything before your order is dispatched. Orders placed without valid proof are refunded. If you don’t yet hold a certificate, you can register for training at elearning.lantra.co.uk/LODI. For the latest approved schemes, see the Think Wildlife stewardship guidance. < All FAQs