This working paper contains guidance, of a voluntary and indicative nature, on the implementation of business R&D surveys, consistent with the standards and proposals contained in the OECD Frascati Manual. The document is oriented towards experts in charge of designing and implementing official R&D surveys, but may be also valuable to academics and researchers with a similar practical orientation. It aims to promote widespread testing and implementation in view of a potential future revision of the Frascati Manual or release of complementary annexes.