CASAS tests assess a student's skill levels in English reading and writing comprehension and is required for enrollment in our Certified Residential Medication Aid Certificate Program. Testing waived IF: you have CASAS tested within the past year and can provide proof of testing/score, OR if you have a CNA certification and can provide verification of certificate. If you need an alternate date/time, contact the Saco Learning Center (207) 282-3846 or learningcenter@rsu23.org