A licensed CIT is certified to work in a chemistry profession. Upon completing a certain amount of work experience under the supervision of a Licensed Professional Chemist (P.Chem.) as determined by a licensing board, a CIT is then eligible to gain experience by supervision from a P.Chem.
While being a certified CIT may help in obtaining a chemistry related job, it is not typically required to do chemistry work. All work performed by an CIT must still be checked and certified by a P.Chem.