Final answer:
Workers can only legally strike following specific legal requirements, which includes waiting periods and notifications.
Striking itself is not illegal if conducted within the framework of the law, and the rights to form unions and engage in collective bargaining are recognized.
Step-by-step explanation:
Under provincial labour relations legislation, workers are only permitted to legally strike after prescribed requirements have been met regarding waiting periods and notifications.
This means that workers cannot strike whenever they want or simply during periods designated by their employers.
Furthermore, striking is not an illegal activity as long as it is conducted within the legal framework established by labor laws, which provides workers the right to form unions and engage in collective bargaining and striking.
In the case of a highly disruptive union strike, the president may declare a "cooling-off period" where workers must return to work.
Procedures for union formation and the ability to strike vary by country, with some countries like Canada having more lenient policies towards unionization compared to the United States.