Transferring occurs from one educational institution to another. According to the National Center for Education Statistics, over a million students have transferred among colleges since 2015. Students can transfer from a community college or two-year program to a four-year college or university to graduate with both an associate and bachelor’s degree (this is called reverse transfer). Students can transfer in between all types of institutions – private, public, large, small, community, and research. Students can also transfer college credits from a high school dual-credit program to a two- or four-year program, and can use those credits toward their degree. Transfer includes the transition of credits from one institution to another, while still maintaining the value of those credits. Course articulation is an important part of that. Course articulation is the process of comparing the content of courses that are transferred between postsecondary institutions – one institution matches its courses or requirements to coursework completed at another institution. Transfer systems can be set up within states or systems. To make this process easier, some schools offer guaranteed transfer credit acceptance if students transfer from pre-approved schools.