Section: Volume B
Explanation/Reference: https://www.axelos.com/best-practice-solutions/prince2/key-benefits-of-prince2

If a project is part of a programme, the activities related to verifying the project approach and capturing previous lessons in the 'Starting up a Project' process are most likely to be reduced or eliminated. This reduction occurs because the programme likely provides a strategic framework and lessons learned that the project can adopt directly. References: PRINCE2 Foundation Training Manual; PRINCE2 2017 Foundation handbook.

The purpose of the plans theme in PRINCE2 is to facilitate the management and control of the project by establishing whether the project's targets are achievable. This involves setting out how and when the project's objectives are to be achieved by defining the necessary resources, activities, timescales, and costs.
References: PRINCE2 Foundation Handbook, Plans Theme section.