President Biden is advancing a series of regulatory changes aimed at increasing workers’ pay and gaining them other benefits, moves that opponents say could burden businesses amid an uneven economic recovery.

The rule changes, most of which are still in progress, would affect workers such as federal contractors, tipped employees and workers who are jointly employed, such as those with jobs at franchised brands. In some cases, the changes seek to reverse Trump administration efforts. In others, the Labor Department is working to implement its own rules.

These include the agency’s announcement last week that it had begun the process of raising the minimum wage for federal contractors to $15 an hour and ensuring it will continue rising to keep pace with inflation.

The regulatory actions represent the administration’s “commitment to respecting and protecting workers’ rights, health and safety,” said Labor Secretary Marty Walsh.