CFR›Title 45›Subtitle B›Chapter VI›Part 675 ContainsSections 675.1–675.4CorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 PART 675—MEDICAL CLEARANCE PROCESS FOR DEPLOYMENT TO ANTARCTICA Sections 675.1 § 675.1 Purpose and authority. 675.2 § 675.2 Medical examinations. 675.3 § 675.3 Medical clearance criteria. 675.4 § 675.4 Waiver process. Authority42 U.S.C. 1870.Source62 FR 31522, June 10, 1997, unless otherwise noted. Previous 674 Part 674—Antarctic Meteorites Next 680 Part 680—National Science Foundation Rules of Practice