Below are some resources from OSHA for Laws and Regulations and Rights and Protection for employees regarding Covid-19.
7 Things You Can Do In The Workplace
It is recommended that you should get a COVID-19 vaccine as soon as you can. Ask your employer about opportunities for paid leave, if necessary, to get vaccinated and recover from any side effects.
Properly wear a face covering over your nose and mouth. Face coverings are simple barriers worn over the face, nose, and chin. They work to help prevent your respiratory droplets or large particles from reaching others. Individuals are encouraged to choose higher quality masks so that they are providing a greater measure of protection to themselves as well as those around them. CDC provides general guidance on masks, including face coverings.
If working outdoors, you may opt not to wear face coverings in many circumstances; however, your employer should support you in safely continuing to wear a face-covering if you choose, especially if you work closely with other people.
Unless you are fully vaccinated and not otherwise at-risk, stay far enough away from other people so that you are not breathing in particles produced by them – generally at least 6 feet (about 2 arm lengths), although this approach by itself is not a guarantee that you will avoid infection, especially in enclosed or poorly ventilated spaces. Ask your employer about possible telework and flexible schedule options at your workplace, and take advantage of such policies if possible. Perform work tasks, hold meetings, and take breaks outdoors when possible.
Be sure to participate in any training offered by your employer/building manager to learn how rooms are ventilated effectively, encourage your employer to provide such training if it does not already exist, and notify the building manager if you see vents that are clogged, dirty, or blocked by furniture or equipment.