RTA

RTA is an abbreviation for:

Radio Television Afghanistan, the state broadcaster of Afghanistan
Rail Tec Arsenal, a research institute in Vienna
Rapid thermal annealing, a short-time heat treatment process, see Rapid Thermal Processing # rapid thermal annealing
Realtime advertising, online trading with banners
Regional Transit Authority New Orleans, a local transport company
Reichstagsakten
Pure-tone audiometry, a measurement method for assessment of hearing, see audiogram
Renal tubular acidosis, a type of acidosis
Rio Tinto Alcan, a Canadian aluminum producer
Round table amateur radio, an association of German amateur radio associations

RTA as distinguishing signs on license plate:

695341