The document outlines the rules for carrying forward marks for Cambridge IGCSE, O Level and Pre-U syllabuses, allowing candidates to improve grades or use results in subsequent assessments, with some restrictions on carrying marks forward only once within 13 months. It also details related rules for Cambridge International AS & A Level, where marks can be carried forward twice, along with examples of how candidates can select their carry forward options. Additionally, it clarifies key FAQs regarding the eligibility and process of carry forward entries across syllabuses.