Out of curiosity from the pasted info below, why does Texas among others have a "+" by them?

USA CUSTOMERS - ANYONE RESIDING OUTSIDE THE EAST COAST MUST ORDER STEALTH:
EAST COAST ONLY: Maine, New Hampshire, Massachusetts, Rhode Island, Connecticut, New York, New Jersey, Delaware, Maryland, Virginia, North Carolina, South Carolina, Georgia, Florida. +Tennessee, +Texas, +Mississippi, +Pennsylvania ----- [EAST COAST HAS NO RESTRICTIONS]