Where the evidence is conclusive and the nature of the violation is such as to preclude any settlement, the violation is of a continuing character that necessitates immediate action to protect the public interest, or the Director of Industry Operations believes that any informal settlement of the alleged violation will not ensure future compliance with applicable laws and regulations in this part, or in any similar case where the circumstances are such as to clearly preclude informal settlement, and the Director of Industry Operations so finds and states the reasons therefor in the notice, the Director of Industry Operations may proceed with the revocation or denial of renewal.