Commission employees certified by the federal railroad administration to perform hazardous materials inspections may enter the property of any business that receives, ships, or offers for shipment hazardous materials by rail. Entry shall be at a reasonable time and in a reasonable manner. The purpose of entry is limited to performing inspections, investigations, or surveillance of equipment, records, and operations relating to the packaging, loading, unloading, or transportation of hazardous materials by rail, pursuant only to the state participation program outlined in 49 C.F.R. Part 212. The term "business" is all inclusive and is not limited to common carriers or public service companies.