Where a professional educator acquires tenure in a tenure area created by this Subpart, he shall retain such tenure while he remains continuously employed by the board of education or board of cooperative educational services as a full-time member of the professional staff of the district, notwithstanding subsequent appointments to tenure or to probation in other tenure areas.
N.Y. Comp. Codes R. & Regs. Tit. 8 §§ 30-1.10