; and (iii) when the number of calendar days remaining in the calendar year is equal to the number of days that the authority has not been activated, the Secretary shall be required to activate the border emergency authority for the remainder of the calendar year on days during which the requirements of paragraph (3)(B) have been satisfied. (B) Second calendar year Notwithstanding paragraph (3), beginning the second calendar year after the effective date, the Secretary shall only have the authority to activate the border emergency authority for 225 calendar days during the calendar year, provided that— (i) during the first 75 calendar days during which any of the requirements of paragraph (3) have been satisfied, the Secretary shall be required to activate the authority; (ii) for the remaining 150 days that the authority is available in the calendar year, the Secretary may, in the sole, unreviewable, and exclusive discretion of the Secretary, determine whether to activate the requirements of the border emergency authority under paragraph (3)(B) until the number of days that the authority has not been activated is equal to the number of days left in the calendar year; and (iii) when the number of calendar days remaining in the calendar year is equal to the number of days that the authority has not been activated, the Secretary shall be required to activate the border emergency authority for the remainder of the calendar year on days during which the requirements of paragraph (3)(B) have been satisfied. (C) Third calendar year Notwithstanding paragraph (3), beginning the third calendar year after the effective date, the Secretary shall only have the authority to activate the border emergency authority for 180 calendar days during the calendar year, provided that— (i) during the first 60 calendar days during which any of the requirements of paragraph (3) have been satisfied, the Secretary shall be required to activate the authority