Employees shall not intentionally make false, misleading or ambiguous statements, orally or in writing, in connection with any matter of official interest. Matters of official interest include among other things: Transactions with the public, government agencies or fellow employees; application forms and other forms that serve as a basis for appointment, reassignment, promotion or other personnel action; vouchers; leave records and time and attendance records; work reports of any nature or accounts of any kind; affidavits; entry or record of any matter relating to or connected with an employee's duties; and reports of any moneys or securities received, held or paid to, for or on behalf of the United States.