First comes the volunteering, then you can't un-volunteer (job stop loss?)? Much more @ link.
https://volunteer.ccrf.hhs.gov/The Office of The Surgeon General and the Office of Public Health Emergency Preparedness are in the process of mobilizing and identifying healthcare professionals and relief personnel to assist in Hurricane Katrina relief efforts. As our nation and global community is now aware, the healthcare needs resulting from Katrina are critical.
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hese workers will be non-paid temporary Federal employees, and will therefore be eligible for coverage under the Federal Tort Claims Act for liability coverage and Workman’s Compensation when functioning as HHS employees. Although there will not be any salary, travel and per diem will be paid.
Assignments may last 14 days or longer.