This position is designated as an "emergency essential" position and the selected candidate will be considered an "emergency essential" employee and will be required to be available, ready, willing, and able to report for duty under all circumstances (e.g., inclement weather, government closings and holidays, lapses in appropriations, non-emergency and emergency situations) for operation 24 hours a day and 365 days per year coverage. ADDITIONAL QUALIFICATIONS: In addition, to qualify for a Nurse (Supplemental) position at the GS-12 level, you must have at least 1 year of professional Nurse experience equivalent to at least the GS-11 level in the federal service obtained in either the private or public sector, performing the following types of tasks: 1) Utilizing advanced critical thinking and nursing skills to assess, plan, perform, and evaluate nursing care for patients in biomedical research protocols.