The British Medical Association (BMA) is a registered trade union for doctors in the United Kingdom. It does not regulate or certify doctors, a responsibility which lies with the General Medical Council. The BMA has a range of representative and scientific committees and is recognised by National Health Service (NHS) employers alongside the Hospital Consultants and Specialists Association as one of two national contract negotiators for doctors.

London Buses route 30 is a Transport for London contracted bus route in London, England. Running between Hackney Wick and Marble Arch station, it is operated by Metroline.