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These changes include new 6-digit categories , revisions to the coverage of some 4-digit categories as well as to 6-digit categories , and a chapter change for one 4-digit group of commodities . These changes include the definition of a " dedicated emergency department , " i.e ., any department or facility of the hospital that is licensed as an ED , or held out to the public as providing treatment for emergency medical conditions , or where one " third of the visits the preceding year provided treatment for emergency medical condi " tions . While these procedures included the use of results on group administered standardised tests , extensive use was also being made of structured observations of students ' literacy behaviours undertaken in one-on-one settings and requiring detailed analysis in order to realise their full diagnostic potential . These changes include increased cardiac output , increased gill vascularity , and release of catecholamines and corticosteroid hormones ( Carmichael et al. 1984a ; Weirich 1997 ) . The educational implications of these changes include a greater aggregate demand for higher education , a greater need to acquire communication and analytical skills needed to be competitive in a highly skilled labor pool , and an increased demand for life-long learning opportunities . These changes include the proposal in 1997 to replace the GRAS affirmation petition process with a GRAS notice procedure , and the statutory provisions of the Food and Drug Administration Modernization Act of 1997 ( FDAMA ) that created the food contact substance notification process . Maintaining these plans includes training IT personnel to fulfill their roles and responsibilities , having plans exercised to validate policies and procedures , and having systems tested to ensure their operability . These enhancements include establishment of new gauging stations , reactivation of discontinued stations , addition of satellite telemetry at a station , and flood-hardened stations . These threats include - - obviously - - terrorists , but also narcotics , small arms trafficking , environmental degradation , HIV / AIDS and other infectious diseases , and trafficking in persons .