The after-action review (AAR) is a discussion technique some high-reliability organizations employ to encourage learning via collective retrospection. AARs are an effective communication tool for promoting reliability if they are held regularly. One way to encourage frequent AARs is to increase participants’ satisfaction with these meetings. This study examined the impact of post-incident, pre-discussion ambiguity and freedom of dissent on participant satisfaction with AARs. Firefighters (N = 119) completed a survey on their most recent AAR. As predicted, the level of post-incident, pre-discussion ambiguity was negatively related to AAR satisfaction. Freedom of dissent, however, attenuated the negative influence of ambiguity on AAR satisfaction.