The standard organization consists of the following structural units:
(a)
Titles, which are numbered consecutively in Arabic throughout the Code;
(b)
Subtitles, which are lettered consecutively in capitals throughout the title;
(c)
Chapters, which are numbered consecutively in Roman capitals throughout each title;
(d)
Subchapters, which are lettered consecutively in capitals throughout the chapter;
(e)
Parts, which are numbered in Arabic throughout each title;
(f)
Subparts, which are lettered in capitals;
(g)
Sections, which are numbered in Arabic throughout each part. A section number includes the number of the part followed by a period and the number of the section. For example, the section number for section 15 of part 21 is “ § 21.15 ”; and
(h)
Paragraphs, which are designated as follows:
Code of Federal Regulations
[54 FR 9682, Mar. 7, 1989; 54 FR 23343, May 31, 1989]