This regulation defines the term navigable waters of the United States as it is used to. define authorities of the Corps of Engineers. It also prescribes the policy, practice and. procedure to be used in determining the extent of the jurisdiction of the Corps of. Engineers and in answering inquiries concerning navigable waters of the United States.. This definition does not apply to authorities under the Clean Water Act which definitions. are described under 33 CFR Parts 323 and 328.
The signs and symptoms of mild traumatic brain injury may include: 1  Loss of consciousness for a few seconds to a few minutes. 2  No loss of consciousness, but a state of being dazed, confused or disoriented. 3  Headache.  Nausea or vomiting.
Pain that occurs in the neck and back of the head is a common set of symptoms. The cervical spine is a complex structure made up of seven cervical vertebrae, ligaments, muscles and sensitive nerves. Since the muscles of the cervical spine attach to the skull, problems in the neck can cause headaches in the back of the head. Most causes of neck pain or head pain are not serious though some may be. Any pain that radiates into the arm or shoulder, pain that does not resolve within a few days or loss of sensation or strength should be brought to the attention of a doctor.