presentations Beginning not later than 180 days after the date of the enactment of this Act, the Director of National Intelligence shall provide to the congressional intelligence committees quarterly updates regarding ongoing implementation of IC ITE as compared to the requirements in the most recently submitted security plan required by subsection (c), long-term roadmap required by subsection (d), and business plan required by subsection (e). (g) Additional notifications The Director of National Intelligence shall provide timely notification to the congressional intelligence committees regarding any policy changes related to or affecting IC ITE, new initiatives or strategies related to or impacting IC ITE, and changes or deficiencies in the execution of the security plan required by subsection (c), long-term roadmap required by subsection (d), and business plan required by subsection (e). (h) Definitions In this section: (1) The term agency unique service means a capability that is unique to and used only within one element of the intelligence community. (2) The term core service means a capability that is available to multiple elements of the intelligence community and required for consistent operation of IC ITE. (3) The term intelligence community information technology environment or IC ITE means all of the information technology services across the intelligence community, including the data sharing and protection environment across multiple classification domains. (4) The term key service is a core service or service of common concern, but is not an agency unique service. (5) The term key service provider is the entity responsible and accountable for implementing a key service within the IC ITE. (6) The term service of common concern means a capability available across IC ITE that is of interest to two or more elements of the intelligence community. (i) Sunset The section shall have no effect on or after September 30, 2024. 2307. Development of secure cellular voice solution for intelligence community (a)