Centennial CollegeâÂÂs Law Clerk Diploma program is accredited by the Institute of Law Clerks of Ontario (ILCO) and provides an excellent opportunity for students to acquire the skills necessary to practice in this field. A unique feature of Law Clerk Diploma program is a four-day-per week work placement in the final semester. This work placement provides invaluable work experience and will allow you to apply your knowledge to real-life legal situations.