Authorising engineer's 'pivotal role' explained.

: Graeme Dunn, engineer, Design and Engineering at Atkins, who serves as an Authorising Engineer (MGPS) for both NHS clients and healthcare providers throughout the UK, Ian Sandford, a medical gas consultant (associate) at Hulley Specialist Gas Services, a specialist division of consulting engineers Hulley and Kirkwood, and Alex Black, an experienced technical consultant and AE (MGPS), of Alex Black and Associates, examine how the AE (MGPS) role developed, and highlight what they describe as its "pivotal importance" today.