Members of the Advisory Board appointed by the President shall, while attending meetings of the Advisory Board or while engaged in duties relating to such meetings or in other activities of the Advisory Board pursuant to this section, including traveltime, be entitled to receive compensation equal to the daily equivalent of the compensation prescribed for level V of the Executive Schedule under section
5316 of title
5. While away from their homes or regular places of business they may be allowed travel expenses, including per diem in lieu of subsistence, as authorized by law (
5 U.S.C.
5703) for persons in the Government service employed intermittently. The ex officio members of the Advisory Board shall not be entitled to any compensation under this section, but may be allowed travel expenses as provided in the preceding sentence.