; (B) are assigned to perform a function that requires access to information in such framework; and (C) are trained in applicable standards for safeguarding and using such information. (2) Guidance The Secretary of Homeland Security shall— (A) issue guidance for Department of Homeland Security employees authorized to access and contribute to the data framework pursuant to paragraph (1); and (B) ensure that such guidance enforces a duty to share between offices and components of the Department when accessing or contributing to such framework for mission needs. (3) Efficiency The Secretary of Homeland Security shall instruct components of the Department of Homeland Security to make available information through the data framework under this section in a machine-readable format, to the greatest extent practicable. (c) Exclusion of information The Secretary of Homeland Security may exclude from the data framework information that the Secretary determines access to or the confirmation of the existence of could— (1) jeopardize the protection of sources, methods, or activities; (2) compromise a criminal or national security investigation; (3) be inconsistent with the other Federal laws or regulations