The charges were laid on April 5 following a March 28 inspection at a house being built near Blackmarsh Road in the capital city.
An occupational health and safety officer observed four individuals working on the roof using fall protection equipment incorrectly.
Specifically, the harnesses that were being worn were not attached to anchorages that would have arrested a fall.
The investigation further revealed that the employer had provided fall protection training to all four workers.
The four workers were each charged with two violations under the act and regulations. Upon entering a guilty plea to one charge, the second charge against each was withdrawn. The pleas were to the charge of failing to use equipment provided for protection in accordance with the instructions for use and the training received.
Fines of $500 were imposed on three of the workers. A larger fine of $750 was imposed on the fourth worker, who was a supervisor.