U.S. Citizenship and Immigration Services announced today the expansion of premium processing for certain F-1 students seeking Optional Practical Training (OPT) and F-1 students seeking science, technology, engineering, and mathematics (STEM) OPT extensions who have a pending Form I-765, Application for Employment Authorization, and wish to request a premium processing upgrade.

More Info @ https://www.uscis.gov/newsroom/news-releases/uscis-announces-premium-processing-new-online-filing-procedures-for-certain-f-1-students-seeking-opt