What document must be provided to the involved parties before a hearing?

The requirement to provide a written notice to the involved parties before a hearing is fundamental to ensuring that all parties are aware of the process and what to expect. This written notice typically includes the details of the hearing, such as the date, time, and location, as well as any pertinent information regarding the matters to be discussed. Providing a written notice helps to maintain transparency and fairness in the proceedings, allowing all parties to prepare adequately.

In this context, a written decision would come after the hearing has taken place, rather than before. A summary of the case might give context, but it does not constitute the formal requirement that ensures all parties have the essential information necessary for participation in the hearing. A verbal announcement lacks the formal documentation that is often legally required to prove that notice was given. Thus, the best choice is the written notice, as it fulfills the procedural necessity of informing all involved parties ahead of the hearing.