Which guidance provides the criteria on flag words for reporting?

The correct guidance for criteria on flag words for reporting is found in DAFI 91-204, Safety Investigations and Reports. This document outlines the procedures and standards for conducting safety investigations and allows for the proper categorization and communication of safety issues, which includes the use of flag words. Flag words are critical in ensuring that significant safety information is effectively highlighted and reported, therefore aiding in maintaining safety protocols.

DAFMAN 91-221 focuses specifically on weapons safety investigations and reports but does not encompass the broader spectrum of reporting and safety investigation protocols that DAFI 91-204 covers. Similarly, DAFI 91-101 pertains to nuclear weapons surety, which is a specialized area within the overall safety framework but does not provide guidance specifically on flag words. Lastly, the Unit Committed Munitions List (UCML) serves a specific purpose related to munitions accountability and does not address reporting criteria or flag words. Thus, DAFI 91-204 is the comprehensive source that provides the necessary framework for ensuring the correct use of flag words in safety reporting.