Interested students must meet all of the eligibility requirements listed below in order to apply to Regeneron STS. 1. Applicants must: a. be over 13 years of age and have legal parental or guardian consent to submit the application and participate, OR b. be 18 years of age or older, OR c. be an emancipated minor. 2. On the application deadline, applicants must be: a. A student (of any citizenship) who is enrolled in and attending the 12th grade/their last year of secondary school (public, private, parochial, or home school) in the United States, Puerto Rico, Guam, the U.S. Virgin Islands, American Samoa, Wake and Midway Islands, or the Marianas, OR b. A United States citizen enrolled in their final year of secondary school on the application deadline date attending a: i. Department of Defense Dependents School or an accredited overseas American or International School, OR ii. foreign school as an exchange student, OR iii. foreign school because his/her parent(s) are temporarily working and living abroad. c. Proof of citizenship and school accreditation is required for 1b (above). 3. Applicants must be completing high school courses required for college applications, must not have graduated from high school before the Regeneron STS application deadline, and must not have entered any previous STS. 4. Applicants must complete individual research projects to enter Regeneron STS; research conducted as part of a pre-collegiate student team project is not eligible for Regeneron STS. This includes any research or portion of research regardless of whether it has or will be submitted to any competition. To remain eligible and collect Regeneron STS awards, the following statements must remain true about the submitted research project until June 1, 2020: a. Students may not split a team project and enter it in Regeneron STS as individuals. Students also may not within the time between submission to Regeneron STS in November 2019 and May 2020 combine individual research submitted to Regeneron STS and present it as a team in competition, publications or any forum. b. Research conducted alongside adult researchers in a research institution is permitted, but clarity and adequate knowledge of an individual's role and independence vs. work being done by the collective laboratory throughout the application is vital. Consideration should be given to the extent to which the research qualifies as independent research, given the student and adult responsibilities. 5. Sons and daughters of Society for Science & the Public employees, Trustees, Regeneron Science Talent Search evaluators or judges are not eligible to enter the Regeneron Science Talent Search.