Generally revise public utilities and carriers laws

HB 518 revises laws related to motor carrier certificates, affecting how Class A, Class D, and Class E motor carriers apply for or transfer operating authority. The bill limits the grounds for protest against certain motor carrier applications (pursuant to 69-12-311(1)(a) or Class E) to their ability to meet specific requirements. For other motor carriers (pursuant to 69-12-311(1)(b) or Class D), it allows the Public Service Commission to deny applications without a public hearing if the proposed service area was previously found not to need the service, unless conditions have materially changed. The commission must still provide notice for applications and hold a hearing if a protest is received.