The teacher is required to give notice to the Division as soon as possible after credit for increased qualifications has been obtained. In giving notice, the teacher must offer documentary evidence that his/her increased qualifications have been registered with the Professional Certification Section of the Administration and Professional Certification Branch of Manitoba Education. When such evidence has been submitted the salary change shall become effective the first day of September of the school year in which such increased qualifications are obtained, provided evidence of increased qualifications are submitted to the Division by December 31st. If such evidence is not submitted by December 31st , the change in classification will be effective the first of the month following receipt of such evidence by the Division office.