CHATTANOOGA, Tennessee -- The Tennessee Valley Authority has a message for opponents of its Bellefonte Nuclear Plant: No costumes.

A month after zombie-costumed protesters paraded in Chattanooga to oppose TVA's plans to revive what they described as a "corpse of a power plant" in Jackson County, the nation's largest public utility has a new ban on costumes at its board meeting Thursday.

A TVA spokesman said the no-costume rule is intended to avoid any "disruption" at the meeting in Knoxville.

An opponent of TVA's plan to restart the nuclear plant construction that was stopped in the 1980s said she and others want to see the project at least delayed. Sandy Kurtz and other members of the Bellefonte Efficiency and Sustainability Team group say promoting conservation and renewable energy sources are better alternatives.