SPA principal, Simon Perkins, addressed the Cairns branch of the UDIA and explained that there are issues with the rollout of the National Broadband Network (NBN). He said that for greenfield sites, developers have a choice between installing NBN Co pit and pipe, or engaging Telstra to design and install pit and pipe. There are risks with either company and these risks have been identified in the SPA document Provision of Telecommunications to Developments.