; and (II) with respect to any delivery point for which a consent for conversion was not received, that— (aa) a postal patron served by such delivery point may elect, by written consent, at any time to convert the primary mode of mail delivery to the same form of delivery as the converted delivery points in such unit; and (bb) if such a patron provides such consent, the primary mode of mail delivery shall be converted not later than 30 days after the date of such consent or, in any case where the conversion of delivery points has not yet occurred, upon implementation of that conversion; (ii) not later than 90 days after the date that the requisite percentage is reached, but not less than 30 days following the written notice under clause (i), convert the delivery points for which consent was received to the applicable new primary mode of mail delivery; and (iii) following the conversion of an address unit, ensure that the primary mode of mail delivery for any new residents to the address unit is the converted primary mode of mail, regardless of the primary mode of mail delivery for the previous occupant. (E) Any delivery point created pursuant to subsection (c)(2) shall be automatically and irrevocably deemed to consent to delivery conversion if the delivery point is established within, or later becomes a part of, an address unit that is proposed for conversion to a different primary mode of mail delivery. (f) Considerations In making a determination to convert the primary mode of mail delivery under this section, the Postal Service shall consider— (1) the impact of weather conditions, physical barriers, or any other factor that may impact the feasibility of providing a primary mode of mail delivery other than door delivery (such as a factor that may significantly reduce the potential cost savings associated with providing centralized delivery or curbside delivery)