§ 73 Definition Of Terms

• •The word 'section' usually means a part of this law book unless it says otherwise.
• •The word 'subdivision' means a smaller part of the section you're reading unless it points to another section.

You're reading a rule about school lunches, and it mentions 'section 5' without saying which book.

That 'section 5' is part of the same rule book you're already reading, not some other book.