The kinetics of nitroso group transfer from 2-ethoxyethyl (EEN) and 2-bromoethyl (BEN) nitrite to the secondary amines piperazine (PIP), N-methylbenzylamine (NMBA), and morpholine (MOR) in bis(2-ethylhexyl) sulfosuccinate (AOT)/isooctane (iC(8))/water microemulsions were determined. They are explained quantitatively in terms of a model in which the reagents are distributed among the aqueous, organic, and AOT film surfactant, with the aqueous pseudophase and the surfactant film as the loci of the reaction.