It has been 13 years since the B.C. Government took away the right of public school teachers to bargain class size and composition while negotiating their contract.
It was a move that has sparked a long court battle between the two sides, and the BC Court of Appeal is set to release its decision in the latest legal chapter on Thursday.
The government has already lost two previous decisions in a lower court where a judge said it had stripped those provisions illegally.
The fighting resulted in a months-long strike last year.
Whichever side the court lands on, the case is expected to go to the Supreme Court of Canada.