(a) Every employee in the Office is required to file a statement of employment and financial interests.

(b) Any other Federal employee who performs any function or duty under the Act is required to file a statement of employment and financial interests. The Head of each other Federal agency and the Heads of other bureaus and offices within the U.S. Department of the Interior shall prepare and submit a report within 60 days of the effective date of these regulations, either listing the Federal positions identified as performing functions or duties under the Act, or listing the organizational unit and showing the total number of employees within the unit who must file a statement. Revision to the listing or certification that revision is not required shall be submitted to the Director by no later than September 30 of each year. The Secretary, the Director, or the Heads of the other affected Federal organizations may revise the list by the addition or deletion of positions at any time such revisions are required to carry out the purpose of the law or regulations of this part. Additions to or deletions from the list of positions are effective upon notification to the incumbents.