obligatoria

adj. obligatory, binding, compelling; must be done; necessary

= enforced, mandatory, obligatory, compulsory, a must have + Nombre.
Ex: Cost cutting by government has resulted in enforced staff reductions.
Ex: Such directives, however, do not have the status of mandatory instructions.
Ex: The references which are suggested are not obligatory, and references should be made as appropriate with regards to the item being indexed.
Ex: Some authors, of course, object to their work being subjected to compulsory dissection for exams in the traditional deadly manner and like Bernard Shaw, they swear to haunt anyone who so mistreats them (Shaw's ghost must be busy these days).
Ex: Shin pads are a 'must have' protection for every level of play.
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* ser obligatorio = be a must.
* servicio militar obligatorio = compulsory military service.