; and (B) any former member of the Armed Forces, including any individual who received a discharge under conditions other than honorable that is determined by the Secretary of Defense to have resulted from substance use disorder, a mental health issue, or a suicide attempt. 4. Powers of Committee (a) Hearings The Committee may hold such hearings, sit and act at such times and places, take such testimony, and receive such evidence as the Committee considers advisable to carry out this Act. (b) Information from Federal agencies (1) In general The Committee may secure directly from any Federal agency such information as the Committee considers necessary to carry out this Act. (2) Furnishing information On request of the Chairperson of the Committee, the head of the Federal agency shall furnish the information to the Committee. (c) Postal services The Committee may use the United States mails in the same manner and under the same conditions as other Federal agencies. (d) Gifts The Committee may accept, use, and dispose of gifts or donations of services or property. 5. Committee personnel matters (a) Compensation of members (1) In general A member of the Committee who is not an officer or employee of the Federal Government shall be compensated at a rate equal to the daily equivalent of the annual rate of basic pay prescribed for level IV of the Executive Schedule under section 5315 of title 5, United States Code, for each day (including travel time) during which the member is engaged in the performance of the duties of the Committee. (2) Federal members A member of the Committee who is an officer or employee of the United States shall serve without compensation in addition to that received for service as an officer or employee of the United States. (b) Travel expenses A member of the Committee shall be allowed travel expenses, including per diem in lieu of subsistence, at rates authorized for employees of agencies under subchapter I of chapter 57 of title 5, United States Code, while away from their home or regular