This document contains guidelines for, and background notes on, network level measurement and reporting of deflection data, for road network management purposes in Australia and New Zealand. The guidelines discuss the frequency and scope of network deflection surveys, including issues such as selection of longitudinal sampling intervals or sampling proportions for deflection surveys. The guidelines are intended as a basis for a consistent approach in Australia and New Zealand. A glossary of terms used in network level assessment of pavement strength is also included.