280 GPs in South Rogaland organized in 58 continuous professional development (CPD) groups of 5-10 participants will be invited to participate. The groups are cluster randomized to control or intervention groups. The intervention will be a training program in priority setting and waiting time decision by use of the national priority guidelines. Hospital consultants who read and assess referrals are selected for recording data on referrals. Referring physician's priority (P1) and recommended waiting time (W1) and hospital doctors' own priorities (P2) and waiting time for examination and treatment in hospital (W2) are recorded as well as the comprehensiveness of the referrals (symptoms, severity, prognosis, expected outcome). We will look at the correlation between comprehensiveness and the presence of priority setting and waiting time in the referrals. The degree of inter-rater correlation between referring GP and hospital consultant will be used to measure the mutual understanding about the actual health problem and the need for specialist care on the basis of the information in the referral. The referral rates for both groups will be registered before and after intervention.