In a memo to New York staff on Monday, HarperCollins announced that employees and visitors must be vaccinated to use the New York office. This is in accordance with governor Kathy Hochul’s new requirement that people must wear masks inside any public place without a vaccine mandate. Still, Harper encourages mask wearing in common areas. New York will reassess the measure on January 15, and Harper will reassess it’s guidelines then as well. Harper had been the outlier among the Big Five publishers in not requiring vaccination to use the office, which remains voluntary.