Editing Stage management (section)

=== United States ===
In the United States, ''stage manager'' is a generic title that may be applied to anyone who performs stage management functions. On small shows, one person typically performs all the tasks of stage management, and is simply referred to as ''the stage manager''. Larger shows often need two or more stage managers. In such cases the head stage manager is titled ''production stage manager'' (commonly abbreviated PSM), and working under the PSM is one or more ''assistant stage managers'' (commonly abbreviated ASM). Shows that employ three stage managers have a PSM and two ASMs, though the program credits may list them as ''production stage manager'' (first or head stage manager), ''stage manager'' (second stage manager), and ''assistant stage manager'' (third stage manager).<ref name=Fazio />

Some professional stage managers on plays and musicals may choose to be represented by a union known as the [[Actors' Equity Association]], which also represents performers. In addition to performing their typical stage management duties (e.g., maintaining the prompt book and calling performances), Equity stage managers are also required to uphold the union's rules and rights for Equity artists. Union stage managers for opera, ballet, and modern dance are represented by the [[American Guild of Musical Artists]] and perform most of the same duties as their counterparts in plays and musicals. The [[American Guild of Variety Artists]] also represents variety performers, dancers and stage managers. Any show that is employing members of these unions must hire at least one stage manager that is also a member of that union.