The documents released today in English did not include the complete 600 page report. They did release an executive summary, some appendices and an introduction document.
National Diet: The Fukushima Nuclear Accident Independent Investigation Commission
Executive Summary NAIIC_report_lo_res
Workers Survey workers_survey
Evacuee Survey evacuees_survey
Commission Meetings commission_meetings_low_res
Prime Minister’s Office: Investigation Committee on the Accident at Fukushima Nuclear Power Stations of Tokyo Electric Power Company