The 83 is still listed on their product website -
http://education.ti.com/educationportal/sites/US/productCate...
http://education.ti.com/educationportal/sites/US/productDeta...
Notice on the page it also says - "Count on TI calculators at exam time. You can use this TI graphing calculator on the PSAT, SAT, and ACT college entrance exams, IB, and AP tests."