McMaster's letter said, "our coastline is not an industrial working coastline as in some other states. It is just the opposite," and, "it is my duty to future generations to protect our most precious assets and to make decisions consistent with South Carolina’s strong conservation ethos.”
Florida recently received a waiver from the Trump Administration.
That public hearing is scheduled from 3 p.m. to 7 p.m. at the Hilton Doubletree hotel in Columbia.
The rally will be held at 11 a.m. at the State House.