La. Legislature and Laws § 24:66
Prior to an attack, if a legislator fails to designate a panel containing the required minimum number of emergency interim successors within thirty days following July 31, 1968 or, after such period, if for any reason the number of emergency interim successors on said panel for any legislator falls below the required minimum and remains below such minimum for a period of thirty days, the governor shall promptly designate as many emergency interim successors as are required to achieve such minimum number. Each emergency interim successor designated by the governor shall serve at the pleasure of the governor, but the legislator for whom the emergency interim successor is designated or any subsequent incumbent of his office may replace at his pleasure any emergency interim successor so designated by the governor.
La. Legislature and Laws § 24:66