Control periods for restricted rental units shall be in accordance with N.J.A.C. 5:80-26.11, as may be amended and supplemented, and each restricted rental unit shall remain subject to the requirements of this section for a period of at least 30 years, until Point Pleasant Beach Borough takes action to release the unit from such requirements or to extend the control periods. Prior to such action, a restricted rental unit must remain subject to the requirements of N.J.A.C. 5:80-26.1, as may be amended and supplemented. After 30 years, the Borough shall have unilateral authority to extend or release such controls.