CSAP is graded on a scale of four proficiency/performance levels. Level 4 is referred to as "advanced," level 3 as "proficient," level 2 as "partially proficient," and level 1 as "unsatisfactory." The Colorado Department of Education website details their standards for each level on each test, and how each score is determined.
Schools are rated by the averaged CSAP scores of their students. Low-scoring schools are eligible for School Improvement Plan assistance from the Colorado Department of Education. If a school receives an unsatisfactory rating (level 1) for two consecutive years it will be recommended it be turned in to a charter school -- unless it had an improvement of 0.5 of a point greater from the standard deviation over the immediately preceding year's overall standardized, weighted total score. Schools with three consecutive unsatisfactory ratings will be converted in to charter schools. School districts with consistently low-scoring schools can lose their accreditation.