In recent years, state policymakers have used two mechanisms to enable interstate mobility of licensed professionals. Interstate licensure compacts are statutorily enacted agreements among states to allow professionals to work across state lines. Universal licensure recognition laws are enacted by a single state to grant a license by endorsement to a practitioner from another state. These policies help solve similar problems, but there are major differences. Notably, compacts are tailored to a particular profession and allow licensees to engage in interstate practice in all compact member states, whereas universal licensure recognition laws attempt to account for most or all professions practicing within a single state.