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.
Already have an out of state CDL? We will reciprocate an out of state or a Canadian commercial driver license. However, an out of state applicant with a hazmat endorsement will have to reapply for a hazmat endorsement, which will include background check, appropriate exams and fees. Already have a Military CDL?