The term "policy changes" refers to any alterations made in a particular policy or set of policies. This can include adjustments, reforms, amendments, or revocations that are implemented by an individual, group, organization, government agency, or other entity responsible for creating and maintaining the policy. The specific changes may vary depending on the nature of the policy in question, but they generally aim to address issues, resolve problems, improve efficiency, or align with new goals or objectives. Policy changes can be driven by various factors such as new information, shifting priorities, feedback from stakeholders, legal requirements, or evolving circumstances.