You do not need a formal document or listing of these requirements, but you will need to demonstrate that they have been identified during the identification of product related requirements a.k.a. design inputs. If these are always the same, you could define them in design guidelines or a similar document. If they vary, but from a specific subset of standards, you could add them as selectable items in a checklist. However, there is no specific method.
An auditor would probably review your return history or design review records for evidence that this was not effectively done. They could also find such requirements through customer prints, PO's, product labels with regulatory logos, or auditor knowledge about regulated industries/products.