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.
1 Print your completed form. 2  Bring the printed form to one of the hazmat driver license offices to continue your application process. 3  At the driver license office, you will be issued a new CDL, pay a $91 Hazmat application fee in addition to the other fees for driver license issuance, and be fingerprinted.