Under the regulation requiring hazardous duty pay for federal employees who work "with or in close proximity to" virulent biologicals, are federal employees who work in close proximity to individuals infected with virulent biologicals entitled to hazardous duty pay when such exposure is not usually involved in carrying out the performance of their regularly assigned duties?

Whether federal employees who work in close proximity to individuals infected with virulent biologicals are entitled to hazardous duty pay under the regulation requiring such pay for work 'with or in close proximity to' virulent biologicals