The current JAG standards state a minimum of 150 procedures per year. The latest BSG guidance found here, states the minimum number of procedures a year should be 200. The new revised 2025 standards will reflect this and be a minimum of 200. Services should be working towards 200, but 150 is acceptable until the standards change.
If a service is doing numbers below this threshold, these either need to be increased or have a truly integrated service to achieve higher numbers. A truly integrated services requires staffing, policy and governance to all be managed as one service.