The TMC exam has two cut scores — selected points on the score scale of the test. With a low cut score, applicants receive credentials as a CRT. With a high cut score, they receive the CRT credential and become eligible for the Clinical Simulation Examination (CSE). A passing score on the CSE is a requirement for becoming an RRT. In essence, the CRT credential is an entry credential and the RRT is an advanced credential. Both are used as the basis for state licensure in the 49 states that regulate respiratory care practices.