When creating a communication plan, the project manager should include the escalation path, format and frequency of meetings, and:

A communication plan specifies who is responsible for communicating what information, to whom, when, and how, making the definition of roles and responsibilities an essential component to ensure effective and organized information flow. This includes defining who initiates communications, who receives them, and who is accountable for communication tasks.

The risk and issue log tracks identified risks and issues, but it is a project register, not a component of the communication plan itself, although the communication plan might detail how to communicate about risks and issues.

The budget outlines financial allocations for the project and is managed as part of cost management, not directly included as a section within the communication plan, though budget status might be a communicated item.

The scope defines the project's boundaries and deliverables, which is a foundational document, but not a direct component of the communication plan itself, although scope changes would be communicated according to the plan.