Up to 1972 the Annual Meetings held were all of the Mass Spectroscopy Group (MSG). However the 7th and 8th Meeting (University of Warwick 1974 and Keele University 1975) were meetings of the British Mass Spectroscopy Group.
Reference to the representation of the Institute of Petroleum and the Mass Spectrometry Discussion Group was dropped from the revised Constitution in 1976 as there was no longer any specific need for it. The possibility of co-opted members was introduced at this time. At the 1977 AGM it was unanimously voted that the existing Committee stay on until the following March to allow the new Constitution to be adopted. This was also the year that membership subscriptions were first introduced.
Prizes were awarded to the best Under 25 year old presenters at the 9th Meeting (1977 University of Swansea); the winners being Miss Janet Harris and Mr Rod Stradling.
Around November 1977 discussion began about the MSG gaining "corporate status" and the Charity Commission was mentioned.