The Snowfall Chemistry Collector Intercomparison Test (SCCIT) took place as part of a field experiment of the PRocessing of Emissions by Clouds and Precipitation (PRECP) program during January and February 1986 in western New York. SCCIT compared the chemical composition and equivalent water depth of snow collected with a large, bag-lined can (used by the PRECP community for a concurrent surface snowfall network); the most widely used automatic wet/dry collector; an aerodynamically designed, heated, funnel and bottle system; and a large plastic sheet. The aerodynamically designed system had significantly higher concentrations of analytes than the other systems, particularly H+ and SO4 2−, apparently because of evaporative losses. Samples from the bag-lined can were more acidic than those from the automatic wet/dry collector. The aerodynamically designed system and the bag-lined can indicated greater snow amounts than the other methods.