This document is one of a series of six national guidance documents, rapidly developed by the CRISM network at the request of the Government of Canada. Collectively, the six documents address the urgent needs of people who use substances, service providers, and decision-makers in relation to the COVID-19 pandemic. The urgent nature of this work required rapid development and dissemination of this guidance. The guidance provided in this document is subject to change as new information becomes available. Readers should note that the intent of this document is to provide general guidance rather than detailed procedural and logistical advice. Readers are advised to consult local public health and medical authorities for specific input on navigating their own unique regulatory and policy environments, as necessary.