For a few years now,
Even so, the a la carte menu is developed and designed to be approached like a tasting menu, the Volt folks say. Instead of breaking items down into conventional appetizer, entree and dessert courses, the a la carte menu has headings like Fruits and Vegetables, Pasta and Grains, Fish and Shellfish and Cheese and Dessert. (You can see a pdf version of the menu here.)
Right now, Volt is immersed in early spring, with menu items featuring ramps, young carrots, morel mushrooms, spring peas, lamb, young chicken and Gulf Coast blue crab.
Meanwhile, you can still get the six-course tasting menu, currently priced at $65. And the $150 per person Table 21 experience is still a thing, too. This is the option with no advance menu.