EU OPS, and specifically 1.285, can be found here:
http://eur-lex.europa.eu/LexUriServ/...01:0206:EN:PDF
1.285(b)(2) Passengers receive a DEMONSTRATION of the following:
(i) The use of safety belts and/or safety harnesses, including how to fasten and unfasten the safety belts and/or safety harnesses;