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Each situation that requires trusted distribution is unique and requires that the system be addressed individually . " Second , alcohol may pose a serious threat to the intoxicated passengers themselves as well as other occupants in situations that require emergency evacuation because alcohol even at a low level can impair cognitive function and performance , " the authors wrote . Should a patient make a request to end his or her life , a teacher should be contacted immediately , in addition to incorporating the traditional hospice interventions for a situation that requires immediate psychological attention . Provides registered interpreters for any situation that requires sign language interpretation . Neither the Fire Department nor Campus Police will check the building for persons who need help exiting unless they locate an emergency situation that requires building evacuation . Because the way we assess outcomes in science classes tends to drive the way we teach it , the classroom of the future will evaluate realistic situations that require application of science concepts , principles and theories . The following notation declarations can be used for virtual reality applications or other situations that required units of measure other than temporal , spatial , and generic quanta . The office prepares , plans , and supports U.S. government stabilization and reconstruction activities in a range of situations that require the capabilities of multiple U.S. government agencies , including : complex emergencies , failing states , failed states , post-conflict environments , and / or situations involving peacekeeping or other international interventions . The routine is distinguished from the urgent , and the physician is freer to concentrate on situations that require his or her intervention .