The Cabinet Office and Department of Health and Social Care has announced a new coronavirus (COVID-19) guideline, which allows some critical fully vaccinated workers to leave self-isolation to attend work, following advice from the government. This is to ensure services critical to the safety and functioning of society can continue. Workers must isolate when they are not working and the rule only applies to asymptomatic contacts and not individuals who test positive. Workers must take a PCR test as soon as possible and daily lateral flow tests before attending work and workplaces must follow safeguards, like social distancing. The rule will only apply to named individuals from a specific set of employers, who will receive a letter from the government detailing steps to take.