It has a committee of one. There is no minimum number on the committee in NSW.
The number of members allowed on the SC is between 1 – 9. So in response to Jimmy’s answer, the minimum number is 1, you cannot have zero members on the SC.
If you don’t elect a SC, then you have no office bearers, not a great position to be in. Without office bearers you have no chairperson and no Secretary, which means you cannot call meetings.
Usually most Strata Managers will take on the role of the office bearers due to their Management Agreement allowing them to do so. When you engage a Strata Manager to manage a scheme, you delegate certain responsibilities and functions to them. There is every chance you would have delegated the functions of the SC and office bearers to your Strata Manager, check your Management Agreement ASAP.
Sir Humphrey, if there is no SC, the OC does not become the SC. One cannot become the other, they are two different groups. However the principle you explained is correct, if there is no SC, all decisions outside the Strata Managers scope of authority (regardless how small they may be) will have to go to a general meeting for a decision to be made.
The above scenario greatly increases your management fees as general meetings require a lot more work to organise than SC meetings.