In this Wednesday, May 19, 2021, photograph, Bill Easton, a checker at a Safeway grocery store, is shown in the shopping center in which the store is located in Aurora, Colo. Easton, like many other workers in retail sales jobs, is fully vaccinated but is concerned about risks posed as retailers change their mask-wearing policies for customers.

An abrupt relaxation of mask policies has left workers at supermarkets and other stores reeling as they try to sort out what the new environment means for their own safety and relationship with customers.

Kroger, the country's largest grocery chain, became one of the latest to announce that, starting Thursday, workers and customers can stop wearing masks in states where mandates are no longer in effect. Other companies that have adopted similar changes include Amazon, Walmart, Best Buy, Macy's, Costco, Home Depot, Trader Joe's and Target, following updated guidance from the Centers for Disease Control and Prevention.

Some workers have taken to social media to cheer, but many others protested. Some don't trust customers — or their co-workers — to be truthful about their vaccination status since most companies are not requiring proof. Others fear they will be judged if they leave their own masks on, even though their reasons for doing so are varied.

William Stratford, 29, won't be fully vaccinated until next month, but shoppers and co-workers at the home improvement store where he works had been coming in without a mask even before the CDC put out its latest guidance.

He has complained to management and eats lunch in his car to avoid maskless people in the breakroom. He said he gets stares from shoppers and co-workers.

“I know for a fact people have a negative opinion of me,” said Stratford of Valley Center, Calif. “It's become a divisive issue in the workplace.”

The CDC last week said fully vaccinated people — those who are two weeks past their final dose of a COVID-19 vaccine — can stop wearing masks outdoors and in most indoor settings. The guidance still calls for people who are not fully vaccinated to continue wearing masks indoors, and for everyone to wear them in crowded indoor settings like buses, planes, hospitals, prisons and homeless shelters.

That has left retailers, grocery stores, restaurants, hospitals and other employers scrambling to decide whether and how to adjust their own policies. Some companies, including Trader Joe's and Macy's, are allowing vaccinated customers to drop their masks but not employees. Meanwhile, some grocery chains like Safeway are leaving their mask requirements in place.

Amazon is among the few companies requiring employees to show proof they got the shot before going maskless, asking them to upload a picture of their vaccine card by mid-June. At Walmart, workers who don't wear masks must confirm they are vaccinated by filling out a daily questionnaire, though it is not requiring proof. Still, the company will have some insight into who is vaccinated because workers must show documentation to get a $75 bonus offered to those who get the shots.