To become a full member of SIGTTO it is necessary for a company to have equity interest in, or to operate, a gas tanker or terminal.
Associate membership is available to applicants who have entered into a contract to build a gas tanker or a terminal. Directors may also admit to associate membership the following organisations:
Associate members have all the rights of a full member except for voting rights at the Annual General Meeting.
Membership of the Society is conditional upon submission of a completed application form. The Membership Committee of the Board then reviews this application.