FM 3-21.5 CH 6-10 "NOTE: Unless otherwise stated (by the person in charge in his instructions before the command DISMISSED), the command DISMISSED terminates only the formation, not the duty day (AR 310-25). " It doesn't give much info (that I could find) about the use of "Fall out" other than it can be given, followed by Fall in, to change the position of a formation.(and in some other cases amounting to about the same thing)
AR 310-25 defines dismiss as "order a unit to break ranks after a drill, ceremony, or formation of any kind"
AR 310-25 defines Fall Out as "Leave a place in formation; Leave one position in a formation, but remain in the immediate vicinity. 3. Command permitting soldiers to leave their places in ranks but keeping them in the immediate vicinity."
I know we've all heard that "Fall in is used by the 1SGT at the first formation of the day and Fall out at the last" However FM 3-21.5 gives them as generic terms used to form and terminate a formation.
I have always known dismissed to be used to dismiss a company from duty until the next formation. i.e. Use Dismiss on a friday end of day formation so all soldiers know they are dismissed for the weekend and to report for 0630 accountibility on Monday. Fall out is to be used to send soldiers to their place of duty until they are "dismissed" for the day or weekend. The only command I know of that is supposed to be used only once a day is "Fall In." Let me rephrase that....."Fall in" is to be used only once a day when forming the company and that is at the first formation of the day.
Of course, I'm only going off of what I've always been told. I haven't actually looked it up. I think I know what I am going to do today.
Before I start, be advised my info comes from 22-5 and pldc from 3 years ago, probably right but it could have changed.
Fall out is a rest position at the halt (like at ease or rest) but the soldiers must remain in the area because they are still in formation. The command dissmissed ends the formation (not the duty day)
This is a common D&C mistake, too many NCOs just repeat rumors. If you're going to make a correction, quote the doctrine.
Just brought this up to my company this morning and I'll admit, I repeat what I've heard in the past and when questioned this morning, I immediately began looking this up in the doctrine. I see this post is from quite a while ago however, I'm not seeing this in 'black and white' so unless someone can point me in a more noteworth direction, I'm leaning towards referring to this as here say.