More than three years after taking office, the administration has never filled the job running the Occupational Safety and Health Administration, which is charged with enforcing workplace safety laws. The $560 million-a-year agency, whose estimated 2,000 inspectors performed 32,020 on-site inspections in 2018, spent months not doing any in-person inspections related to coronavirus, other than in hospitals, said Rebecca Reindel, director of occupational safety and health for the AFL-CIO.