What does NADA stand for?

What does NADA mean?

NADA	New Art Dealers Alliance Business » Firms
NADA	National Automotive Dealers Association Governmental » Transportation
NADA	Native Affairs Department Annual Regional » African
NADA	North American Dollar Area Business » International Business
NADA	National Aquaculture Drug Application Medical » Physiology
NADA	No American Drivers Allowed Miscellaneous » Funnies
NADA	Not Another Dumb Accessory Miscellaneous » Funnies
NADA	New Animal Drug Application Governmental » FDA
NADA	North American Dark Army Miscellaneous » Science Fiction
NADA	New Animal Drug Application Governmental » US Government
NADA	new animal drug application Medical » Veterinary

nothing, nil, nix, nada, null, aught, cipher, cypher, goose egg, naught, zero, zilch, zip, zippo(noun): a quantity of no importance