; or (B) in the case of an application to provide such service to an area in the event that such area becomes an unserved area due to destruction of infrastructure, a power outage, or any other reason, after such area becomes an unserved area. (c) Publication of list of providers The Commission shall publish on the internet website of the Commission a list of all providers of emergency connectivity service for which an approval is in effect to provide such service under the rules issued under subsection (a). (d) Access to electromagnetic spectrum The Commission shall include in the rules issued under subsection (a) the following: (1) In the case of a provider of emergency connectivity service that is approved to provide such service to an area under such rules and that seeks access to spectrum that another entity is authorized to use, access to such spectrum shall be made available to such provider only if such provider receives voluntary express written consent for such access from such entity. An entity that receives a request for consent under this paragraph shall reasonably engage with the provider submitting the request and make a determination with respect to such request in a timely manner. (2) With respect to providers of emergency connectivity service that are approved to provide such service to an area under such rules, technical requirements applicable to such providers that ensure that the use of electromagnetic spectrum under a relevant approval does not cause harmful interference to the use of spectrum by another entity authorized to provide a service to such area or an adjacent geographic area. (e) Areas unserved with respect to both services In the case of an area that is an unserved area with respect to both services described in subsection (i)(5)(B), the rules issued under subsection (a) shall require that, if a provider approved to provide emergency connectivity service to such area under such rules chooses to provide emergency connectivity service to such area, such provider shall provide both