46 CFR §7.65
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
A line drawn from Charleston Light on Sullivans Island to latitude 32°40.7′ N. longitude 79°42.9′ W. (Charleston Lighted Whistle Buoy “2C”); thence to a point on Folly Island at latitude 32°41.0′ N. longitude 79°53.2′ W.