I only have a section and 80 acres, some of the worst country on the ranch (of course), that is for 8 head year round. they sent a letter about management, but I know for a fact there are about 2 out of 50 or so employees in the local area that could even find my two parcels on a map, much less out on the ground.
I know they have to deal with all sorts of "stakeholders" and conflicting interests, but I am not a fan of that agency and am grateful to not have to deal with them in the management of this place. I do participate in watershed issues with them and that is bad enough.
for severe drought in general, you can move animals to other pasture if you can find it, sell off, or feed. one of the best ways to handle it is using constant moves as taught by Alan Savory and others, but if you have multiple agencies involved on an individual place like much of the west, that can be difficult to implement even in wetter times. best to have buy-in with your on-the-ground range staff and hopefully have some enviro types on your team and on your side.