Changes in, or additions to the information contained in the regular employee's
statement of employment and financial interest shall be reported in a supplementary
statement as of September 30 each year. If there are no changes or additions, a negative
report is required. Notwithstanding the filing of the annual report required by this
section, each employee shall at all times avoid acquiring a financial interest that
could result, or taking an action that would result, in a violation of the conflict-of-interest
laws or subpart C of this part.