N.J. Stat. § 18A:28-5.1
A tenured teaching staff member who has been rated effective or highly effective on his most recent annual summative evaluation, and who accepts employment in the same position in an underperforming school shall be under tenure in that position in the new district during good behavior and efficiency and shall not be dismissed or reduced in compensation except for inefficiency, incapacity, or conduct unbecoming such a teaching staff member or other just cause and then only in the manner prescribed by subarticle B of article 2 of chapter 6 of this Title, after the employee receives a rating of effective or highly effective in at least one of the annual summative evaluations within the first two years of employment in the new school.
For purposes of this subsection, "effective" or "highly effective" means the employee has received an annual summative evaluation rating of "effective" or "highly effective" based on the performance standards for his position established through the evaluation rubric adopted by the board of education and approved by the commissioner.
As used in this section, "underperforming school" means a school which has been identified by the Department of Education as a "focus school" or a "priority school" for any year within a two-year period.
N.J.S. § 18A:28-5.1