When the last day of an IEP, SEP or a GEP falls on a:
         
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                  • 
                     any other day all or part of which is declared to be a non-workday for Federal employees
                        by statute or Executive Order,
                      
 
 
an eligible individual may enroll in the first regular workday after the end of the
            enrollment period.
         
         This non-workday rule does not apply to months before the end of the IEP. If the third,
            fourth, or fifth month of an individual's IEP ends on a non-workday and the individual
            enrolls on the next regular workday, the individual is considered to have enrolled
            in the fourth, fifth, or sixth month, as applicable, of the IEP.