The purpose of this research was to evaluate the implementation of the novel Irish Rugby Football Union Coach Education Framework (CEF) on coach–athlete interactions and perceptions. Participants were coaches (n = 4) and athletes (n = 54) from two rugby union teams. Coaches were observed pre-intervention and post-intervention of an education workshop based on the CEF and had nine training sessions video-recorded and analysed using the Coach Analysis and Intervention System (CAIS). Their perceptions of their relationship with their athletes were measured using the Coach–Athlete Relationship Questionnaire (CART-Q). Athlete perceptions of their coaches’ behaviours were measured using the Coaching Behaviour Scale for Sport (CBS-S). CAIS results revealed coaches increased the use of ‘Management’ and ‘Feedback’ behaviours ( p < 0.05) post-CEF, without altering prominent high-volume behaviours (e.g. ‘Instruction’). Coaches utilised similar time proportions for CAIS ‘Practice’, ‘Playing’ and ‘Management’ states, respectively, with no significant change post-CEF. CART-Q and CBS-S results revealed predominantly positive perceptions between coaches and athletes for both pre-CEF and post-CEF. Coach education is a non-linear learning process requiring consistent application over long periods of time, however, the alteration in coach behaviours post-CEF, coupled with the largely positive perceptions of both agents of the coach–athlete dyad, is an encouraging step forward for the further implementation of the CEF.