If the commission, subsequent to an investigation of a possible violation of a duly adopted code of ethics, local law, ordinance, or resolution or General Municipal Law, section 811 or 812, and after compliance with the provisions of General Municipal Law, section 813(12)(a), determines that there is reasonable cause to believe that a violation has occurred, it shall send a notice of reasonable cause:
N.Y. Comp. Codes R. & Regs. Tit. 9 § 9977.3