105 ILCS 5/21B-65
Individuals holding certification issued by the National Board for Professional Teaching Standards shall be issued a National Board for Professional Teaching Standards designation on an existing Professional Educator License. The designation shall be issued automatically and added to an individual's Professional Educator License, and individuals need not submit an application.
The National Board for Professional Teaching Standards designation must be issued only for the same validity period as the National Board for Professional Teaching Standards certification, and the designation must be removed from the Professional Educator License when the educator no longer holds the certification from the National Board for Professional Teaching Standards.
Beginning on July 1, 2013, individuals holding an Illinois National Board for Professional Teaching Standards endorsement issued pursuant to the requirements of Section 21-2 of this Code must have a current certificate issued by the National Board for Professional Teaching Standards in order to maintain the Illinois National Board for Professional Teaching Standards endorsement.
Any individual who, on or after July 1, 2012, has been issued a Master Certificate pursuant to Section 21-2 of this Code or a National Board for Professional Teaching Standards designation on a Professional Educator License pursuant to this Section may work as a teacher only in an area for which he or she holds the required Illinois endorsement. Any individual who, prior to June 30, 2012, has been issued an endorsement for a particular area on a Master Certificate may work as a teacher in that area even without having been issued the required Illinois endorsement.
105 ILCS 5/21B-65