Controlled substances are pharmaceutical and non-pharmaceutical drugs the US federal government regulates due to their risks. Yes, alcohol is classified as a hazardous material due to its flammable nature, potential health risks, and regulatory requirements for handling, storage, and transportation. In contrast to its hazardous material status, alcohol’s classification as a controlled substance varies significantly.
(f) Records shall be made available to a subsequent employer upon receipt of a written request from a driver. The employer shall promptly provide the records requested by the driver. The employer must use the Management Information System (MIS) form and instructions as required by 49 CFR part 40 (at § 40.26 and appendix J to part 40).