In rendering an adverse disposition, an administrative agency must indicate the grounds for the adverse disposition to the person subject to the disposition at the same time; provided, however, that this does not apply when there is an urgent need for rendering the disposition without indicating the grounds.
In the case referred to in the proviso to the preceding paragraph, an administrative agency must indicate the grounds referred to in that paragraph within a reasonable period of time after the disposition has been rendered, excluding the cases in which the whereabouts of the subject person have become unknown and other cases in which there are circumstances that make it difficult to indicate the grounds after rendering the disposition.
When adverse dispositions are made in writing, the grounds referred to in the preceding two paragraphs must be indicated in writing.