New York State is experiencing teacher shortages in specific subject areas. One way to address these shortages is through the certification and placement of new teachers. This study explored the pathways through which new teachers between 2015/16 and 2017/18 earned certificates, their certification areas, and their subsequent placement and retention in districts across the state, particularly high-need districts. While the majority of new teachers earned certificates through the traditional in-state pathway, this varied somewhat by certification area. The proportion of teachers who earned certificates through the individual evaluation pathway was higher for the shortage certification area of career and technical education than for other certification areas. The most frequent certification area was the shortage certification area of special education, while the shortage certification areas of career and technical education and bilingual special education were among the least frequent. New York City district schools employed new teachers who earned certificates through the alternative in-state pathway at a higher rate than other types of high-need districts (rural, large city--not New York City, and other urban/suburban) as well as average- and low-need districts. New teachers employed in high-need districts had higher rates of retention in the same district for a second year than new teachers employed in average- and low-need districts. Just 5 percent of new teachers in New York State were uncertified. [For the Study Brief, see ED615883. For the Study Snapshot, see ED615882. For the appendixes, see ED615884.]