ACT Test Dates: http://www.act.org/content/act/en/products-and-services/the-act/registration.html#dates
SAT Test Dates: https://collegereadiness.collegeboard.org/sat/register/dates-deadlines
Preparing for the ACT https://www.act.org/content/act/en/products-and-services/state-and-district-solutions/act-online-testing/act-online-version-examinees.html
ACT OpenEd http://resources.opened.com/act-practice/ (An account will be made for each Sophomore, after they take the Pre ACT in the Fall of their sophomore year.)
Practice Online ACT https://tn.actonline.act.org/client/index.html