Administrative Policy Writing
Most sections are divided into
some sections are short enough to have no subsections.)
But most rules contain many subsections.
Subsections are lowercase letters: (a), (b), (c), etc.
If you are citing to a particular subsection, you simply add
the subsection on the string of chapter and section:
330.9(a) means subsection (a) of section 9 of chapter 330.
Subsections usually specify different requirements or
scenarios regulated by a particular rule.