The medulla oblongata is the lower portion of the brainstem. It deals with autonomic functions. The cardiac center is the part of the medulla oblongata responsible for controlling the heart rate.
HazMat Endorsement Requirements. Below is what you can expect when applying for a Class H endorsement: You must have a valid commercial drivers license (CDL) for the state in which youâre applying. It must be valid (not currently suspended or revoked) and not checkered with serious road violations.
Commercial Motor Vehicle Drivers Menu. CDL Medical Information; Frequently Asked Questions; Handbook; Hazmat Endorsements; Medical Report Form; Military Drivers; Skill Test Sites; Third Party Skill Test Sites : All applicants for a Commercial Driver License are required to have an Operators License and pass the vision requirements. Applicants must be at least 18 years of age. If they are under 21, they will be restricted to intrastate operation only. Oral exams may be given in English or Spanish with the exception of skills test or Hazmat exams. Interpreters may not be used during the administration of CDL oral exams or during any portions of the CDL skill exams. Be sure to study the handbook. Class A Exam Requirements â To operate trucks or truck combinations weighing 26,001 lbs or more, and towing a vehicle/unit over 10,000 lbs, then a Class A license is needed.