Prior to special use permit approval being granted by the Planning Board, the CTF applicant, sponsor, lessee, contract vendee or owner, their successors and assigns, shall obtain a financial surety, bond or similar undertaking sufficient to cover the entire cost of removal of the commercial telecommunications facility and related facilities such as power lines, transformers, etc., and the reclamation of the affected landscape to substantially the same condition as prior to the facility's construction. Said financial surety, bond or similar undertaking shall be in an amount acceptable to the Planning Board and substantiated by a qualified and independent engineering expert as designated by the Planning Board. The amount of financial surety shall be reviewed every three years and, if necessary, increased to reflect current costs of facility removal and site reclamation.