correction period
(C)The term “correction period” means— (i)the period, ending 270 days after the date of mailing by the Secretary of a notice of default with respect to the plan’s failure to meet one or more of the requirements of this subsection; (ii)any period set by a court of competent jurisdiction after a final determination that the plan fails to meet such requirements, or, if the court does not specify such period, any reasonable period determined by the Secretary on the basis of all the facts and circumstances, but in any event not less than 270 days after the determination has become final; or (iii)any additional period which the Secretary determines is reasonable or necessary for the correction of the default,