How to Transition Your Staffing Agency into a Travel Staffing Agency

I currently run a staffing agency that provides therapists for school districts and higher education institutions in California. I’m interested in expanding my agency to include travel staffing, allowing me to recruit candidates from other states. I’ve tried searching online for guidance, but I might not be using the right keywords, as I haven’t found the information I need. Any advice or resources on making this transition would be greatly appreciated!