Chapter 6. Commercial Driver's License Information *There are 2 requirements you must meet before getting or renewing a Hazardous Materials Endorsement: * Apply for and successfully pass the Transportation Security Administration's Security Background Check. This is now required for all Hazardous Materials Endorsement applicants. It could take 60 days or more to receive the results. * Take and pass the Hazardous Materials Endorsement exam. You can do this at the same time you as getting or renewing your CDL Call (877) 429-7746 or go to https://universalenroll.dhs.gov/ to begin the process. 03/18 Self Certification If you're a CDL driver, you're federally required to self-certify: this means that you must tell the RMV if you will operate only in Massachusetts, or will cross state lines. You must also tell us if you're required to hold a medical certificate. If you have an out-of-state CDL that's being renewed, upgraded, or transferred from that state, you need to complete a CDL self-certification, which includes a CDL self-certification form and a copy of the medical certificate. You may also need to provide the RMV with documentation showing that you have received a vision, diabetes, or skills performance evaluation variance from the Federal Motor Carrier Safety Administration (FMCSA). 03/18https://universalenroll.dhs.gov/ https://www.fmcsa.dot.gov/