LOS ANGELES—Indoor mask-wearing is no longer mandatory in Los Angeles County, thanks to a new health order that took effect Friday in response to federal data showing a decreased impact of COVID-19 on the county’s health care system. Effective at midnight, mask-wearing went from mandatory to “strongly recommended” in most indoor spaces across the county. Masking is still required in higher-risk settings, including health care facilities, transit centers, airports, aboard public transit, in correctional facilities, and at homeless shelters and long-term care facilities. Indoor masks also continue to be required on K–12 school campuses, although the county and state will lift that requirement on March 12. The policy, however, is expected to remain in place in the Los Angeles Unified School District until the end of the school year. Despite the easing of the requirement, county officials noted that individual businesses can still opt to require face coverings. People are …