After the workers sued, the agency and the city agreed to a $1.7 million settlement but admitted no wrongdoing.
And they do not allow workers to sue their employers for injuries caused by negligence.
The Court ruled that workers can only sue when the system is adopted, not when they are actually affected.
If a product was made in an unsafe manner, then the workers could sue.
More than 6,000 workers have sued, alleging that the city failed to protect them from toxic pollutants.
But the worker can also sue for lost future earnings and significantly increase the amount of money he or she receives.
Under Maryland law, the workers could not sue Gore.
Under the act, a worker cannot sue an employer without the commission's approval.
In exchange, workers could not sue employers for workplace accidents.
The worker sued under a federal whistle-blower statute and stands to collect part of the damages if the case is successful.