CFR › Title 50 › Part 223 › Figures 18a, 18b and 18c to Part 22350 CFR Figures 18a, 18b and 18c to Part 223Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy link[77 FR 29912, May 21, 2012]