you have the right to be free from ________in the workplace when exercising safety and health rights.

The missing word is retaliation. You have the right to be free from retaliation in the workplace when exercising safety and health rights (for example, when you report a hazard, file a safety complaint, or cooperate with an inspection). Under OSHA’s worker rights materials, employers are prohibited from retaliating against employees for using their safety and health rights, which includes raising safety concerns or reporting injuries and illnesses.