According to section 20(1) of the act, the duties of the Languages Commissioner are:
...to take all actions and measures within the authority of the Languages Commissioner with aview to ensuring recognition of the rights, status and privileges of each of the Official Languages and compliance with the spirit and intent of the act in the administration of the affairs of government institutions, including any of their activities relating to the advancement of the aboriginal languages in the Territories.
The Commissioner has the authority to investigate any complaints made to her office or may initiate an investigation, if it is warranted. The Commissioner may also issue opinions on complaints and make recommendations to institutions as she deems necessary. If, after a reasonable amount of time, the Commissioner's recommendations have not been acted upon by the institution, the Commissioner may make a report to the Legislative Assembly.
The Commissioner is also required to submit an annual report to the Legislative Assembly. Ms. Fibbie Tatti was appointed to the position of Languages Commissioner in July of 2000.