Companies large and small are vying for a piece of what they believe will be a lucrative market for verifying shot status.

Health care workers in a few states could lose their jobs this week if they don’t get vaccinated against COVID-19.

The move is likely to be challenged in court.

New York will start enforcing its mandate Sep. 13. It requires visitors to theaters, museums and other establishments to show proof of at least partial vaccination — same for people want to eat and drink inside a restaurant or bar.

Workplace mandates are likely to accelerate after full government approval of the Pfizer vaccine.

Mandates will be detrimental to employers in a tight job market.

As the delta variant makes riders reconsider hopping in a car with a stranger, ride-sharing firms won’t impose mandates on driverss.

There are obvious benefits to ensuring health care workers are vaccinated, but mandates have costs too.