More workplaces are bolstering their volunteer programs, especially as employee demands grow for socially responsible employers and engagement. Nearly three in five companies surveyed by the Association of Corporate Citizenship Professionals reported increased opportunities for group volunteering last year.

With National Volunteer Week in the rearview mirror, coworkers buoyed by recent acts of kindness might be looking for ways to integrate service more regularly into their professional schedules. They stand to benefit themselves, too. Recent University of Oxford research suggests organized volunteering is one of the most effective workplace programs for improving workers’ well-being.

But not all corporate volunteering is created equal. The following advice from experts and nonprofit leaders provides some best practices for anyone interested in building or strengthening an officewide culture of service.