Commissioners and Alternate Commissioners who are not State or Federal employees shall receive compensation at the daily rate of GS–18 of the General Schedule when engaged in the actual performance of duties for the United States Section or for the Commission.

Panel Members and Alternate Panel Members who are not State or Federal employees shall receive compensation at the daily rate of GS–16 of the General Schedule when engaged in the actual performance of duties for the United States Section or for the Commission.

Travel and other necessary expenses shall be paid for all United States Commissioners, Alternate Commissioners, Panel Members, Alternate Panel Members, members of the Joint Technical Committee, and members of the Advisory Committee when engaged in the actual performance of duties for the United States Section or for the Commission.

Except for officials of the United States Government, such individuals shall not be considered to be Federal employees while engaged in the actual performance of duties for the United States Section or for the Commission, except for the purposes of injury compensation or tort claims liability as provided in chapter 81 of title 5 and chapter 71 1