; and (III) a recommendation regarding the suitable class of transportation for the covered employee based on the disability. (B) Special need The special need of a covered employee, including the head of an agency, described in paragraph (1)(A)(ii) shall be certified annually (unless the special need is a lifelong condition, in which case the special need shall be certified once) in accordance with the procedures of the agency in which the covered employee is employed, or to which the covered employee is applying, as applicable. (5) Application of 14-hour rule A covered employee, including the head of an agency, who travels using business-class accommodations under paragraph (1)(B)(v) shall not be eligible for a rest stop on the way to, or upon arrival at, the duty site of the covered employee. (6) Inclusion of attendant If a covered employee, including the head of an agency, the travel of whom in accommodations other than coach-class accommodations is authorized because of a disability or special need that is certified under paragraph (4), is authorized to have an attendant accompany that covered employee, the head of the agency employing the covered employee (or to which a covered employee is applying, as applicable), or in the case of the head of an agency, the White House Chief of Staff, may also authorize the attendant to use other than coach-class accommodations during that travel. (7) Limit on delegation The head of an agency and the White House Chief of Staff may not delegate the duties and authorities under this subsection, except for the duties and authorities under paragraph (2). (c) Rules of construction (1) Upgrades Nothing in this section may be construed to prevent a covered employee from upgrading to first-class accommodations or business-class accommodations for official travel at the personal expense of the covered employee, including through the redemption by the covered employee of frequent flyer benefits. (2) Two cabins available (A) Different seat types If an airline flight has 2 classes of