Trinity College London Diploma qualifications are available at three levels:

Associate (ATCL, AMusTCL)
The standard of performance is equivalent to the performance component of the first year in a full-time undergraduate course at a conservatoire or other higher education establishment.

Licentiate (LTCL, LMusTCL)
The standard of performance is equivalent to the performance component on completion of a full-time undergraduate course at a conservatoire or other higher education establishment.

Fellowship (FTCL, FMusTCL)
The standard of performance is equivalent to the performance component on completion of a full-time post-graduate course at a conservatoire or other higher education establishment.