The office facilitated the legislative work of the Parliament by processing all bills considered in the Senate, preparing legislative documents including third reading and assent prints of bills passed, and processing assent messages.

The office also prepared the formal messages by which the two Houses communicate on legislative and other activity. In 2017–18, 180 messages were prepared, of which 138 related to the passage of bills (the remaining related to matters such as committee memberships). These figures compare to 190 messages, of which 136 related to the passage of bills, in 2016–17. Figure 6 reflects the level of legislative activity in recent years.