(Licensure requirements) can be identical to (certification requirements).
(Licensing standards) can be identical to (certification requirements).
A (time differential) may be covered by a backdating of a start of a (certification period).
A (certification system) can be by a principal investigator.
A certification may state a lack of correction of deficiencies.
A date of certification may be backdated to a last day of a survey.
Execution of a (provider agreement) can be contingent upon certification.