Complex sentence: The R&A is a private golf club run for the benefit of its members, as such since 2004 it has passed responsibility of publishing the rules to a private company, R&A Rules Ltd, operating under the stewardship of the R&A.
Split into simpler sentences: The R&A is a private golf club run for the benefit of its members. As such, since 2004 it has passed responsibility of publishing the rules to a private company, R&A Rules Ltd, operating under the stewardship of the R&A.