The Land Transportation Office (LTO) regulates land transportation and traffic in the Philippines under Republic Act 4136. Its core functions include registering and regulating motor vehicles, issuing driver's licenses and permits, and enforcing traffic laws. The LTO requires motor vehicles to be registered annually and meet certain requirements. It also issues different types of driver's licenses, including student permits, non-professional licenses, and professional licenses. Conductors of public vehicles must also be licensed by the LTO.