A comprehensive training programme for completing the CANDID is described. It covers both versions of CANDID and provides all training slides and notes for the trainer. Learning points covered are the background to the CAN approach, the policy background to needs assessment in intellectual disabilities services, the concept of need, research using CANDID thus far, CANDID domains, need rating (no need, met need, unmet need), CANDID rating algorithm, structure of the CANDID (including trigger questions, anchor points, perceptions of help of interventions, and the differences between staff, service user and informal carers assessment of needs. Two case vignettes are provided along with expected ratings. A role play is suggested in order to give participants the opportunity to learn, practice or consolidate needsassessment using CANDID. A discussion focusses on the rationale behind each rating,