There are several major frameworks for learning, teaching, and assessing foreign language skills: ACTFL (American Council on the Teaching Foreign Languages) Proficiency Guidelines, ILR (American Federal Government's Inter-Agency Language Roundtable) Skill Level Descriptions, the CLB (Canadian Language Benchmark), and the CEFR (Common European Framework of Reference for Languages). These frameworks form the basis of major testing and certification systems, and they are used for textbook and curriculum development, as well as educational standards. In this presentation, I focus on CLB and its major features as well as its similarities and differences with other frameworks. Then, I will discuss which system practically use in Persian language classes at the University of Toronto and highlight the advantages and challenges of using this system in Persian language classes