Not sure if I quite understood. The distribution amount will be announced together with the ex-date. Don't think there are any regulations about it...a few MLPs have been known to announce a distribution increase one or two quarters in advance. For example EPD announced the amount of the February distributions months ago. I guess when they do that, it is subject to change, but realistically once announced it is very unlikely to be rescinded. EROC also gave guidance for this quarters distribution, a quarter in advance. But usually the announcements come 2-4 weeks before the payout dates which are mid Feb, May, Aug and Nov.