Through the CAREX project, we have tested a series of practical tools, and developed solutions and approaches to address aquatic weed, sediment, and nutrient management issues in agricultural waterways in lowland Canterbury. We have developed a set of steps and toolboxes, underpinned by science, which can be applied by farmers, landowners and stakeholders to facilitate rehabilitation and improve agricultural waterway health.This handout is the first in a series, which outlines the CAREX key steps and the tools we have tested to improve waterway health.Suggested citation: Febria, C.M., Hogsden, K.L., Devlin, H.S., Collins, K.E., Goeller, B.C, Harding, J.S., and A.M. McIntosh. 2018. CAREX Key Steps, CAREX Toolbox Handout 1, University of Canterbury, Christchurch.