We do not use levels on certificates.
Levels I, II, III etc are systems used for Competency Based Training in both Australia and the UK. (The levels also mean different things in different countries).
We operate with a more sophisticated system (experiential learning).
Eg.  Level III for instance means you are competent to perform certain tasks under limited supervision.
Our certificate develops a foundation within the discipline that enables you to develop and grow your capacity to work and solve problems within the discipline. You learn through experience as you study; and the study sets you on a path that encourages ongoing learning through experience after graduation. Our graduates are better prepared to advance in their career, to work alone or with others, etc. This concept is more in keeping with some of the more cutting edge education systems around the world. This contrasts with the CBT system which was popular throughout the 1980's and perhaps 90's but is often criticised today by leading educators around the world.
We take this approach because it works better; and on all reports, our graduates are in fact very successful.