The CLT exam is designed for high school students applying for college, around 16-18 years of age. CLT3-8 and CLT10 are designed for younger grades.
- CLT : designed for 11th/12th graders
- CLT10 : designed for 9th/10th graders
- CLT3-8 : designed for 3rd-8th graders
CLT does not limit when students can take these exams, so it is up to the individual what is best for them in their educational pursuits.