CLTA-IN is the abbreviation of the Indiana Chinese Language Teachers Association, one of the regional Chapters of CLTA-USA  (Chinese Language Teachers Association of the USA). Its former name was ICLASS, which was established in the 1980s. The last presidents were Mindy Zhang, Grace Heebner, Wendy Hui Yuan, Pauline Yang, Ye Sun, Yi-Chuan Yan, Chunmei Guan, Shu-Chun Tseng, Shihling Chui-Dwyer, Shu Ming Fang, Ying Ling Bao, etc.. In 1987, Mindy Zhang was awarded Indiana Foreign Language Teacher of the Year. In 2018, Ginger Tseng was awarded Indiana Foreign Language Teacher of the Year.