The duties and powers of the State Fire Marshal and of his or her deputies and assistants prescribed in sections 81-509 to 81-523, 81-526, 81-527, 81-531, 81-538, and 81-5,151 to 81-5,157 and the Petroleum Products and Hazardous Substances Storage and Handling Act shall not be applicable to the Nebraska Natural Gas Pipeline Safety Act of 1969.