The ILTS Test of Academic Proficiency (formerly the Basic Skills Test) scores are valid indefinitely. All versions of the Test of Academic Proficiency/Basic Skills test (096, 300, or 400) are acceptable. 

Content Area test scores are valid for 10 years from the date of application for educator licensure. Since you will apply for your license in June 2018, only passing scores dated after July 2008 are eligible.