This Practice Note focuses on providing guidance for reviewing environmental policies. This is to help a reviewer to determine their legal sufficiency, alignment with international agreements, and effectiveness in addressing key environmental concerns such as emissions reduction, resource management, and climate resilience. It is intended to support legal practitioners in ensuring that policies meet compliance requirements, corporate sustainability commitments, and stakeholder expectations. The Practice Note will assist legal practitioners, including environmental lawyers, corporate counsel, and compliance officers, who are responsible for reviewing, drafting, and advising on environmental policies. It serves as a practical tool to navigate the complex legal landscape of environmental regulations and sustainability obligations, that often provide the backdrop to an environmental policy. By providing a series of questions grouped into relevant topics, practitioners can interrogate an environmental policy to evaluate its efficacy and effectiveness.