Sections 5-404 through 5-409 of this subtitle do not apply to: a railroad that is subject to the Federal Railroad Safety Act of 1970 and the jurisdiction of the Federal Railroad Administration; a landfill in the State; a person who: is engaged in the business of providing commercial or residential garbage and refuse pickup and disposal service while actually engaging in the pickup and disposal of garbage and refuse; and does not pick up, transport, treat, store, or dispose of controlled hazardous substances that are regulated under Title 7, Subtitle 2 of the Environment Article; or an analytical, educational, or research and development laboratory.