(43)Energy derivative markets show a particularly strong interlink with spot commodity markets and in these derivative markets the proportion of non-financial clearing members is high. On those markets, a significant number of market participants are also producers of the underlying commodity. Access to sufficient collateral to back commercial bank guarantees in full could require substantial divesting by those non-financial clearing members of their current positions or could impede them from continuing to clear their positions as a direct clearing member of a CCP. That process could cause market disruptions in energy markets, in terms of liquidity and diversity of market participants. Therefore, its application should be postponed according to a well established time-frame.