An employee or official shall disclose a financial interest prohibited under Regulation .02 of this chapter: For an official or employee required to file a financial disclosure statement under General Provisions Article, §5-601, Annotated Code of Maryland, on the financial disclosure statement for the reporting period in which the official or employee held the financial interest; If the official or employee knows or has reason to know that the entity is subject to the authority of the official or employee, subject to the authority of the official’s or employee’s governmental unity, or is negotiating or has entered a contract with the official’s or employee’s governmental unit, on the form provided by the Ethics Commission for an official or employee who: Is not required to file a financial disclosure statement under General Provisions Article, §5-601, Annotated Code of Maryland; or Did not hold the financial interest during the reporting period covered by the most recent financial disclosure statement filed under General Provisions Article, §5-601, Annotated Code of Maryland. An official or employee shall file a form required by §A(2) of this regulation with the Commission on or before the latter of: Acquiring the financial interest; or Acquiring knowledge that or reason to have knowledge that the entity: Is subject to the authority of the official or employee or the government unit with which the official or employee is affiliated; or Is negotiating or has entered a contract with the governmental unit with which the official or employee is affiliated. An official or employee has reason to know that an entity does business with the official’s or employee’s governmental unit if the entity is listed as doing business with the official’s or employee’s governmental unit that is provided by the Commission or is available on the Commission’s website.