- In 1998, the U of T Staff Association (UTSA) formed a union, joining the United SteelWorkers (USW).
- In 2000, USW Local 1998 negotiated its first collective agreement.
- In 2001, Local 1998 negotiated the right to Job Evaluation, the classification of all union positions to ensure members have equitable work and opportunity for advancement.
- In 2010, all Local 1998 members enjoyed a 3.00% salary increase.
- In 2014, USW local 1998 represents 7000 members across 5 different locations.