Railcar Chocks are an important safety item in any rail yard or repair facility, and SafeRack’s railcar wheel chocks provide fast blocking of all types of railcars. Choose from cast steel railcar wheel chocks, rail-clamping wheel blocks the newly introduced urethane railcar wheel chocks… all of which provides worker safety and meets OSHA regulations to safely prevent railroad cars from moving during loading or unloading operations, including OSHA regulations 1910.110(15), 1910.11(13) and 1910.110(A) (5).