Before receiving a commission each person appointed under the provisions of RCW
81.60.010 through
81.60.060 shall successfully complete a course of training prescribed or approved by the criminal justice training commission, and shall take, subscribe, and file with the commission an oath to support the Constitution of the United States and the Constitution and laws of the state of Washington, and to faithfully perform the duties of the office. The corporation requesting appointment of a railroad police officer shall bear the full cost of training.