MIL-PRF-63002L(TM)
3.1.1.2 Subordinate paragraphs. There shall be no more than six levels of subparagraphs. There
shall be at least two subparagraphs at any level (e.g., if you have a you must at least have b, if
you have (1) you must at least have (2), etc.). Subordinate paragraphs, procedures, and steps
shall be numbered and formatted as follows:
a. First level paragraph, shall be numbered and have a title. The number shall be indented
under the first word of text in primary paragraph and be lower case alphabetic
character(s) followed by a period (e.g., "a."). The title shall be in title case and shall be
bold and shall be followed by a period. The text shall begin on the same line as the title
indented two spaces after the period. The text shall have a hanging indent that begins the
wrapped text directly under the beginning of the text of the first line. If paragraph
numbering extends beyond the letter "z," numbering shall continue using "aa.," "ab.,"...
"az." then go to "ba.," "bb.," etc. Should numbering go to double letters, the number
position shall be right justified to maintain a consistent indent of the text.
b. Second level paragraph or step shall be numbered with an Arabic number enclosed in
parentheses (e.g., "(1)"). The number shall be indented under the first word of the first
level subparagraph. A title is optional. If a title is given, the title shall be in title case and
shall be bold and shall be followed by a period. The text shall begin on the same line as
the title indented two spaces after the period. If no title is given, text shall begin two
spaces following the right parenthesis. The paragraph or step shall have a hanging indent
that begins the wrapped text directly under the beginning of the text of the first line. For
double digit numbering, the number position shall be right justified to maintain a
consistent indent of the text.
c. Third level paragraph or step shall be numbered with a lower case alphabetic
characters(s) enclosed in parentheses (e.g., "(a)"). The number shall be indented under
the first word of the second level subparagraph. A title is optional. If a title is given, the
title shall be in title case and shall be bold and shall be followed by a period. The text
shall begin on the same line as the title indented two spaces after the period. If no title is
given, text shall begin two spaces following the right parenthesis. The paragraph or step
shall have a hanging indent that begins the wrapped text directly under the beginning of
the text of the first line. The same criteria as for first level numbering shall be used.
d. Fourth level paragraph or step shall be numbered with an underscored Arabic number
followed by a period (e.g., "1."). The number shall be indented under the first word of
the third level subparagraph. A title is optional. If a title is given, the title shall be in title
case and shall be bold and shall be followed by a period. The text shall begin on the same
line as the title indented two spaces after the period. If no title is given, text shall begin
two spaces following the period. The paragraph or step shall have a hanging indent that
begins the wrapped text directly under the beginning of the text of the first line. The same
criteria as for second level numbering shall be used.
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