Official notice means the decision taken by an administrative law judge that any judicially cognizable facts, technical or scientific facts are true when the parties have not presented evidence contrary about it. The administrative law judge before taking such official notice shall issue notice to the parties about the fact on which such official notice is to taken. The administrative law judge shall also state in the notice details about the sources of such facts including any staff memoranda and data. Then the parties will be given an opportunity to contest the facts and material so noticed. A party taking such official notice is required to produce a copy of the material about which the judicial notice is taken.