ntr53-C_2022247EN.01000101-E0053
(53) The prototype must be safe and under complete control and supervision. Controlled conditions would mean expert operators, restrictions to public contact with the product, avoiding inappropriate interaction with other neighbouring products etc.
Source: EUR-Lex (Cellar) · retrieved 2026-09-25 · Text as adopted (Official Journal); later amendments are not incorporated in this text.