FAQs What is CRRU, and why do you need proof of certification? CRRU stands for the Campaign for Responsible Rodenticide Use, the UK stewardship scheme that governs how professional rodenticides like this one can be sold and used. It exists to protect wildlife and pets from unnecessary exposure, and to slow the spread of resistance by ensuring products are used correctly. That’s why we’re required to see proof of competence, either a CRRU-recognised certificate or valid farm assurance scheme membership, before we can supply this product in the quantities professionals need. You can find the latest approved certification and assurance schemes on the Think Wildlife website, and register for training at elearning.lantra.co.uk/LODI. < All FAQs