; and (M) any additional factors affecting the feasibility of appropriately responding to a worst-case chemical facility terrorist incident, including worst-case release of a substance of concern. (3) Public availability The report required under this section shall be made publicly available, and shall not include protected information. (4) Confidential information The Secretary shall submit any protected information relating to the report required under paragraph (1) to Congress in an appendix to the report. 2220. Annual report to Congress (a) Annual Report Not later than 1 year after the date of enactment of this title, and annually thereafter for 10 years, the Secretary shall submit a report on progress in achieving compliance with this title to— (1) the Committee on Homeland Security and Governmental Affairs and the Committee on Environment and Public Works of the Senate; and (2) the Committee on Homeland Security and the Committee on Energy and Commerce of the House of Representatives. (b) Requirement Each report required under subsection (a) shall include— (1) a qualitative discussion of how covered chemical facilities, differentiated by tier, have reduced the risks of chemical facility terrorist incidents at the covered chemical facilities, including— (A) a generalized summary of measures implemented by covered chemical facilities in order to meet each risk-based chemical facility performance standard established under this title, and the measures that the covered chemical facilities already had in place— (i) in the case of the first report under this section, before the issuance of the final rule implementing the regulations known as the Chemical Facility Anti-Terrorism Standards , issued on April 9, 2007; and (ii) in the case of each subsequent report, since the submittal of the most recent report submitted under this section; and (B) any other generalized summary the Secretary determines appropriate to describe the measures covered chemical facilities are implementing to comply with this title