According to the Lambda Sigma organization's website, www.lambdasigma.org, active membership on any campus consists of not more than 50 students or 10 percent of the freshman class, whichever is lower. Candidates for membership are those first year students who have placed in at least the top 35 percent of the class academically at the time of selection and who have shown evidence of leadership during their first year. The students who meet these qualifications are eligible for selection in the spring term following completion of at least one academic term. Members selected in the spring are active Lambda Sigmas during their second year.