Technical changes or further developments of a product usually require a revision of the corresponding technical documentation. But changes to legal frameworks and standards, findings from a risk assessment or changes in user requirements can also result in the need for revision of the technical documentation.

No matter whether it is a question of revising an already published technical regulation within the framework of a technical logistical support (TLB) or of revising the technical documentation of a system manufacturer, in both cases it is the task of the technical writer to know and observe the requirements of the applicable regulations (e.g. standards, directives and specifications) and their special demands on the revision service.