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.
Other neurological conditions can also cause scalp pain. Occipital neuralgia causes sudden, severe, stabbing pain in the back of the head near the neck. It may be the result of past trauma in some instances. Trigeminal neuralgia causes similar sensations in the face and front half of the scalp. Tumors of the tissues that cover the brain, called meningiomas, are a rare cause of intermittent scalp and facial pain. Trauma and Hair Loss. A blow to the head can cause temporary scalp bruising and tenderness.