Which section contains revision history in Marine Corps correspondence?

The revision history in Marine Corps correspondence is documented in the footer. This section is designated for additional reference materials or essential notes that do not belong in the main body of the correspondence. The footer allows for easy access to important information such as revision dates, which is valuable for tracking changes and ensuring that all parties are referencing the most current version of a document.

In contrast, the header typically contains information like the subject line, the sender, and the recipient's address, while the body includes the main content of the correspondence. The introduction provides context but does not serve as a place for revision notes. By placing revision history in the footer, it remains unobtrusive, ensuring that the primary message is conveyed without clutter while still providing necessary revision information.