All CHVRA's need to consider the following documents:
Marine and Coastal Act 2018
Marine and Coastal Policy (DELWP, 2020)
Marine and Coastal Strategy (DELWP, 2022)
Victoria’s Resilient Coast – Adapting for 2100+ guidelines and supporting documents
Guidelines for Development in Flood Areas (DELWP, 2019)
Victorian Floodplain Management Strategy (2016)
Planning Practice Note 53 (2023) Managing Coastal Hazards and the Coastal Impacts of
Climate Change
Melbourne Water (2023) Sea level Rise Guidelines – Interim Development Assessment
Principles
Mornington Peninsula Planning Strategy and Planning Policy Framework with specific
reference to Clause 13.01-1S and 13.01-2S
Siting and Design Guidelines for Structures on the Victorian Coast (DEWLP, 2020)
AS 5334-2013: Climate Change Adaptation for Settlements and Infrastructure
Western Port Local Coastal Hazard Assessment (Water Technology, 2014)
Mapping outputs from the Western Port Local Coastal Hazard Assessment and subsequent
inundation modelling by Melbourne Water)
These documents and guidance material may change over time, and the most recent and relevant information should be used when undertaking a CHVRA.
A CHVRA is a risk management process that provides a structured approach to the management of risk. This is the approach outlined in AS/NZS 5334-2013 “Climate change adaptation for settlements and infrastructure - A risk-based approach”. The risk framework for CHVRA is as shown in Figure 2 below comprised of the following main elements:
- Identify the Hazard - starting with defining the geomorphic setting, the coastal drivers and processes of change and the specific requirements of the relevant Overlay (LSIO2-4 or EMO6). Then characterise the specific hazard being considered by the CHVRA – for example, what type of erosion hazard(s) are relevant to the location.
- Evaluate Exposure to the Hazard - defining the spatial extent of the hazard. It also includes determining when such hazards might occur and/or provides an estimate of the annual probability (i.e., likelihood).
- Consequence Analysis - determines the level impact of consequence from a hazard assuming it occurs. When undertaking a coastal hazard assessment this includes an estimation of exposure and sensitivity of an element at risk. When combined with adaptive capacity then is then termed vulnerability and is a measure of consequence in broader risk assessment terminology.
- Risk Estimation - the combination of the likelihood of a particular hazard occurring and the consequence gives an estimate of risk for the asset or people being considered.
- Risk Evaluation – is the process by which estimates of risk levels are compared against an organisation’s criterion for risk acceptance. As such, risk may be deemed either acceptable, tolerable, or unacceptable.
- Risk Mitigation and Control - is the process of managing the risk through treatment or mitigation actions to achieve one of the following options: avoid the risks, reduce the likelihood, reduce consequences, transfer the risk, or accept the risk. The Marine and Coastal Policy (2020) outlines the hierarchy of adaptation options to consider when looking to mitigate or control coastal risks.

For further information, including datasets, please refer to the Guidelines FINAL CHVRA Guidelines August 2024 (PDF, 4MB).pdf.